Acta Neurologica Scandinavica Journal Impact Factor & Information

Publisher: Wiley

Journal description

The aim of Acta Neurologica Scandinavica is to publish manuscripts of a high scientific quality representing original clinical, diagnostic or experimental work in neurology and neurosurgery. The scope is to act as an international forum for the dissemination of information advancing the science or practice of these disciplines. Papers in English will be welcomed, especially those which bring new knowledge and observations from the application of therapies or techniques in the combating of a broad spectrum of neurological disease and neurodegenerative disorders. Relevant articles on the basic neurosciences will be published where they extend present understanding of such disorders.

Current impact factor: 2.44

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 2.437
2012 Impact Factor 2.474
2011 Impact Factor 2.469
2010 Impact Factor 2.153
2009 Impact Factor 2.324
2008 Impact Factor 2.317
2007 Impact Factor 2.099
2006 Impact Factor 1.833
2005 Impact Factor 1.982
2004 Impact Factor 1.712
2003 Impact Factor 1.226
2002 Impact Factor 1.358
2001 Impact Factor 1.064
2000 Impact Factor 1.304
1999 Impact Factor 1.325
1998 Impact Factor 1.108
1997 Impact Factor 0.902
1996 Impact Factor 1.068
1995 Impact Factor 1.142
1994 Impact Factor 1.133
1993 Impact Factor 0.977
1992 Impact Factor 1.122

Impact factor over time

Impact factor
Year

Additional details

5-year impact 2.33
Cited half-life 0.00
Immediacy index 0.56
Eigenfactor 0.01
Article influence 0.67
Website Acta Neurologica Scandinavica website
Other titles Acta neurologica Scandinavica (Online), Acta neurologica Scandinavica
ISSN 1600-0404
OCLC 46680937
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Wiley

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Some journals have separate policies, please check with each journal directly
    • On author's personal website, institutional repositories, arXiv, AgEcon, PhilPapers, PubMed Central, RePEc or Social Science Research Network
    • Author's pre-print may not be updated with Publisher's Version/PDF
    • Author's pre-print must acknowledge acceptance for publication
    • On a non-profit server
    • Publisher's version/PDF cannot be used
    • Publisher source must be acknowledged with citation
    • Must link to publisher version with set statement (see policy)
    • If OnlineOpen is available, BBSRC, EPSRC, MRC, NERC and STFC authors, may self-archive after 12 months
    • If OnlineOpen is available, AHRC and ESRC authors, may self-archive after 24 months
    • Publisher last contacted on 07/08/2014
    • This policy is an exception to the default policies of 'Wiley'
  • Classification
    ​ yellow

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: To explore the differences in the features and impact on quality of life (QOL) of non-motor symptoms (NMS) of tremor dominant (TD) and postural instability gait disorder (PIGD) phenotypes early Parkinson's disease (PD), as well as the determinants of poor QOL for TD and PIGD phenotypes. This cross-sectional study recruited 301 patients with early PD and 101 healthy controls. Specific assessments used for NMS included NMS scale (NMSS), the Hamilton Rating Scale for Depression (HRSD-24), the Hamilton Anxiety Scale (HAMA), the Mini-Mental state examination (MMSE), and Addenbrooke's Cognitive Exam-Revised (ACE-R). QOL was evaluated with the PD Quality of Life Questionnaire (PDQ-39). Tremor dominant phenotype patients were 117 (38.9%), and PIGD were 155 (51.5%). Compared with TD patients, patients with PIGD had higher frequency of NMS (9.0 ± 5.3 vs 6.7 ± 4.6, P < 0.001), NMSS total scores (39.6 ± 34.5 vs 24.4 ± 22.7, P < 0.001) and more poorly for PDQ-39 summary index (19.2 ± 14.0 vs 13.8 ± 11.5, P = 0.001). There was no difference in the impact of NMS measured with NMSS on QOL between PIGD and TD phenotypes. PIGD phenotype had little impact on poor QOL once the effect of depression was taken into account. Depression was a primary negative predictor for QOL in both TD and PIGD patients (Beta: 0.697 and 0.619, respectively, P < 0.001). PIGD phenotype had a higher prevalence of NMS and worse QOL than TD phenotype. Depression is related to a dramatic decline in QOL in both TD and PIGD phenotype patients with PD. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12461
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    ABSTRACT: The vagus nerve has gained a role in the treatment of certain diseases by the use of vagus nerve stimulation (VNS). This study provides detailed morphological information regarding the human cervical vagus nerve at the level of electrode implant. Eleven pairs of cervical vagus nerves and four pairs of intracranial vagus nerves were analysed by the use of computer software. It was found that the right cervical vagus nerve has an 1.5 times larger effective surface area on average than the left nerve [1,089,492 ± 98,337 vs 753,915 ± 102,490 μm(2) , respectively, (P < 0.05)] and that there is broad spreading within the individual nerves. At the right side, the mean effective surface area at the cervical level (1,089,492 ± 98,337 μm(2) ) is larger than at the level inside the skull base (630,921 ± 105,422) (P < 0.05). This could imply that the vagus nerve receives anastomosing and 'hitchhiking' branches from areas other than the brainstem. Furthermore, abundant tyrosine hydroxylase (TH)- and dopamine ß-hydroxylase (DBH)-positive staining nerve fibres could be identified, indicating catecholaminergic neurotransmission. In two of the 22 cervical nerves, ganglion cells were found that also stained positive for TH and DBH. Stimulating the vagus nerve may therefore induce the release of dopamine and noradrenaline. A sympathetic activation could therefore be part of mechanism of action of VNS. Furthermore, it was shown that the right cervical vagus nerve contains on average two times more TH-positive nerve fibres than the left nerve (P < 0.05), a fact that could be of interest upon choosing stimulation side. We also suggest that the amount of epineurial tissue could be an important variable for determining individual effectiveness of VNS, because the absolute amount of epineurial tissue is widely spread between the individual nerves (ranging from 2,090,000 to 11,683,000 μm(2) ). We conclude by stating that one has to look at the vagus nerve as a morphological entity of the peripheral autonomic nervous system, a composite of different fibres and (anastomosing and hitchhiking) branches of different origin with different neurotransmitters, which can act both parasympathetic and sympathetic. Electrically stimulating the vagus nerve therefore is not the same as elevating the 'physiological parasympathetic tone', but may also implement catecholaminergic (sympathetic) effects. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12462
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    ABSTRACT: Self-management of a disease is considered one of the most important factors affecting the treatment outcome. The research on the correlates of self-management in multiple sclerosis (MS) is limited. The aim of this study was to determine if personal factors, such as illness perception, treatment beliefs, self-esteem and self-efficacy, are correlates of self-management in MS. This cross-sectional study included 210 patients with MS who completed Multiple Sclerosis Self-Management Scale - Revised, Brief Illness Perception Questionnaire, Treatment Beliefs Scale, Rosenberg Self-Esteem Scale, and Generalized Self-Efficacy Scale. The patients were recruited from a MS rehabilitation clinic. Demographic data and illness-related problems of the study participants were collected with a self-report survey. Correlation and regression analyses were performed to determine associations between variables. Four factors: age at the time of the study (β = 0.14, P = 0.032), timeline (β = 0.16, P = 0.018), treatment control (β = 0.17, P = 0.022), and general self-efficacy (β = 0.19, P = 0.014) turned out to be the significant correlates of self-management in MS. The model including these variables explained 25% of variance in self-management in MS. Personal factors, such as general self-efficacy, perception of treatment control and realistic MS timeline perspective, are more salient correlates of self-management in MS than the objective clinical variables, such as the severity, type, and duration of MS. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12465
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    ABSTRACT: Amyotrophic lateral sclerosis (ALS) patients manifest aberrations in the vitamin D endocrine system, with a vitamin D deficiency. Genetic investigations have identified those proteins which link vitamin D to ALS pathology: major histocompatibility complex class II molecules, toll-like receptors, poly(ADP ribose) polymerase-1, haeme oxygenase-1, the reduced form of nicotinamide adenine dinucleotide phosphate and calcium-binding proteins. Vitamin D additionally impacts ALS through cell-signalling mechanisms: glutamate, matrix metalloproteinases, the Wnt/β-catenin signalling pathway, mitogen-activated protein kinase pathways, prostaglandins, reactive oxygen species and nitric oxide synthase, but its role has been only poorly investigated. Our aim was to investigate vitamin D receptor (VDR) gene single nucleotide polymorphisms (SNPs) in an ALS population. This gene encodes the nuclear hormone receptor for vitamin D3. A total of 75 consecutive sporadic ALS patients (~20% of the Hungarian ALS population) and 97 healthy controls were enrolled to investigate the possible effects of the different VDR alleles. A restriction fragment length polymorphism technique was utilized for allele discrimination. One of the four investigated SNPs was associated with the disease, but none of the alleles of these SNPs influenced the age at disease onset. The ApaI A allele was more frequent in the ALS group than in the control group and may be an ALS risk factor. This is the first verification of the genetic link between ALS and VDR. However, further studies are needed to confirm these findings. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12463
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    ABSTRACT: Pompe disease is a rare treatable glycogen storage disease with in adults - a limb-girdle muscle weakness. Muscle biopsy may fail to show the typical vacuolar myopathy. We asked if we had un-diagnosed patients with Pompe disease in western Sweden. We searched the muscle biopsy registry during the time period 1986 until 2006 including 3665 biopsies and included patients at our Neuromuscular Center with unspecified myopathy or limb-girdle muscular dystrophy. The dry blood spot test was used to identify patients with Pompe disease. A total of 82 patients (46 from the biopsy register and 36 from our center) were seen and dry blood spot test was obtained. No patient with Pompe disease was found. The dry blood spot test was low in three cases (11, 16, and 18% of normal) but a second blood sample showed a normal result based on GAA enzyme activity in lymphocytes in all three patients. In one patient with low normal result of the analysis in lymphocytes a genetic test showed no pathogenic mutations. Further investigation gave a definite diagnose of another myopathy in 12 patients. The prevalence of Pompe disease in western Sweden (3 in 1.27 million or 0.24 per 100.000 inhabitants) is lower than in the Netherlands and New York. Re-evaluation of patients with myopathies but without definite diagnosis is rewarding since 12 of 82 patients in our study had a definite molecular diagnosis after workup. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12460
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    ABSTRACT: The objective of this study was to determine the relevance of hyponatraemia in the prognosis of Guillain-Barré syndrome (GBS). We retrospectively analysed records of 48 consecutive patients with GBS and performed a systematic literature review on frequency/correlates of hyponatraemia in GBS. Hyponatraemia <133 mmol/l was detected in 18/48 of our patients with GBS (37.5%). In 10/18 (55.5%), hyponatraemia occurred post-immunoglobulin therapy. Hyponatraemia correlated with age >50 years (P = 0.011), concurrent malignancy (P = 0.039), diuretic use (P < 0.001), preceding diarrhoea (P = 0.042) and Medical Research Council (MRC) sum score at discharge (MRCSSD) (P = 0.026). Only concurrent malignancy (P < 0.001) and diuretic use (P < 0.001) were independently associated with hyponatraemia. MRCSSD also correlated with MRC sum score on admission (MRCSSA) (P < 0.001), length of hospital stay (P < 0.001), summated compound muscle action potential (P = 0.034) and lowest forced vital capacity (P = 0.001). Only MRCSSA (P = 0.004) and length of hospital stay (P < 0.001) independently predicted MRCSSD. Combining our findings with previous literature indicates comparable frequencies of hyponatraemia in GBS in four of five studies and association with mortality in three of four studies, with an independent link in one. Independent association of hyponatraemia with muscle strength is not demonstrated. Hyponatraemia appears of comparable frequency in GBS to that in other diseased cohorts suggesting it is common but non-specific. Hyponatraemia has otherwise been shown to be an independent predictor of death in other disorders and available data indicate the same is also likely in GBS, although this may vary in patient subgroups. Hyponatraemia is, however, not an independent prognostic indicator of neuromuscular weakness severity in GBS. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12459
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    ABSTRACT: To determine the characteristics of acute ischemic stroke patients admitted to hospital with history of prior ischemic stroke(s). We hypothesized that there is an association between the number of risk factors and prior ischemic stroke irrespective of age. All patients with acute ischemic stroke admitted to Haukeland University Hospital between 2006 and 2013 were registered in the NORSTROKE database. Variables included prior ischemic stroke(s) (based on self-report and patient records), risk factors, TOAST classification, and CT and MRI findings. Comparison was made between patients with prior ischemic stroke and first-ever ischemic stroke. Multivariate analyses were performed. In total, 2697 patients were included and 461 (17.1%) had a history of prior ischemic stroke(s). Logistic regression analyses showed that prior ischemic stroke was associated with the number of risk factors, leukoaraiosis, hypertension, atrial fibrillation, and atherosclerosis. History of prior ischemic stroke in patients with acute ischemic stroke was associated with the burden of risk factors, atherosclerosis, and atrial fibrillation compared to first-ever ischemic stroke. This has important implications for secondary preventive treatment. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12457
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    ABSTRACT: Patent foramen ovale (PFO) is a common disembryogenic defect with well-attested prevalence but dubious etiopathogenetic linkage with cryptogenic stroke and different clinical conditions. Transcranial color-coded Doppler (TCCD) assures high accuracy in diagnosing right-to-left shunt (RLS) and its functional aspects. Aim of the study was to evaluate RLS prevalence and degree in subjects submitted to TCCD for conditions theoretically associated or caused by paradoxical embolism to the brain. PFO assessment, performed in 10 major diagnostic categories and a control group, followed a standardized protocol with a 10 or 20 microbubbles (MB) cutoff to identify any or only large RLS, respectively. Among 2113 patients, a significant larger RLS prevalence was found in stroke (53.3%), TIA (45.7%) and migraine with aura (39.7%) when compared with non-migraineurs controls (25.5%). RLS degree was significantly higher in stroke and TIA patients: The ROC curve from MB load data helped to identify new cutoff values for both normal breathing (42 MB) and Valsalva (139 MB) tests. From logistic regression, a family history for PFO, ASA, and male gender appeared independent predictors of a RLS. By contrast, RLS seemed independent of white matter abnormalities presence on brain neuroimaging or stroke mimics. In addition to recently defined criteria, genetically determined inheritable traits and epidemiologic characteristics (male gender) should be taken into account when assessing PFO and related cerebrovascular risk profile. A newly defined threshold in TCCD MB count is suggested to discriminate shunts related to stroke and TIA from innocent ones. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12456
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    ABSTRACT: To evaluate long-term (up to 5.5 years) safety, seizure reduction, and maintenance of efficacy of the antiepileptic drug (AED) lacosamide as adjunctive treatment in an open-label extension trial (SP774; ClinicalTrials.gov: NCT00515619). Three hundred and seventy-six adults with partial-onset seizures taking 1-3 AEDs enrolled following completion of a double-blind trial of adjunctive lacosamide. During open-label treatment, dosage of lacosamide (100-800 mg/day) and/or concomitant AEDs could be adjusted to optimize tolerability and seizure control. Kaplan-Meier estimates of patient retention were 74.5% at 12 months, 52.9% at 36 months, and 40.6% at 60 months; median open-label treatment duration was 1183 days (~3.2 years). The most frequently reported treatment-emergent adverse events were dizziness (24.2%), headache (14.4%), diplopia (13.8%), and nasopharyngitis (13.8%); 9.0% of patients discontinued due to adverse events, most commonly dizziness (1.3%). Median percent reduction in 28-day seizure frequency from baseline of the double-blind trial was 49.9% overall, 55.4% for 1-year completers, and 62.3% for 3-year completers. Overall, 50.0% of patients were considered ≥50% responders (achieved ≥50% reduction in 28-day seizure frequency); 55.9% of 1-year completers and 63.0% of 3-year completers were ≥50% responders. In eligible patients who entered the open-label extension trial, lacosamide was generally well tolerated. For most patients within each yearly completer cohort, seizure reduction was maintained over time. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12451
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    ABSTRACT: To determine whether patients with Duchenne/Becker muscular dystrophy (DMD/BMD) have components of metabolic syndrome (MetSy) and to evaluate whether leptin is associated with components of MetSy. This study included 78 patients (nine, <6 years of age; 54, 6 to <16 years of age; and 15 patients, ≥16 years of age). Obesity and body fat mass were determined by waist circumference and dual-energy X-ray absorptiometry, respectively. A 12-h fasting blood sample was collected in the morning. Patients were categorized into four groups according to the number of criteria for MetSy: group 0: none; group 1: one; group 2: two and group 3: three or more criteria. All age groups showed components of MetSy. The concentration of these components was significantly higher in patients ≥16 years old. The prevalence of hypertriglyceridemia was from ~37% to 46% in all age groups. The prevalence of MetSy was 7.1% for patients from 6 to <16 years of age and 24% for patients ≥16 years of age. Serum leptin levels increased significantly (P < 0.05) with age; the highest (13.43 ± 9.4 ng/ml) value was observed in patients >16 years of age. Total leptin was correlated with the number of patients with MetSy (r = 0.383; P = 0.001). Components of MetSy are significant in patients with DMD/BMD. A high prevalence of hypertriglyceridemia was observed. Younger patients with DMD/BMD have risk factors for MetSy. Although leptin increased according to different degrees of MetSy, this relation disappeared when the body fat was corrected by leptin; therefore, the association could be caused by a common risk factor-fat. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; DOI:10.1111/ane.12450
  • Acta Neurologica Scandinavica 07/2015; 132 Suppl S199:1-3. DOI:10.1111/ane.12423
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    ABSTRACT: In the present review, we discuss observational and experimental data suggesting a protective effect from sun exposure and/or vitamin D in multiple sclerosis (MS). These data include geographic variations in MS occurrence, temporal trends, genetics, biobank, and questionnaire data. We look more closely at the differentiation between general effects from UV exposure, and those of vitamin D per se, including plausible mechanisms of action. Finally, primary prevention is touched upon, and we suggest actions to be taken while awaiting the results from ongoing randomized controlled trials with vitamin D in MS. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; 132 Suppl S199:56-61. DOI:10.1111/ane.12432
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    ABSTRACT: Pathogenic mechanisms underlying multiple sclerosis development have yet to be clearly identified, but considerable evidence indicates that autoimmunity plays an important role in the etiology of the disease. It is generally accepted that autoimmune diseases like MS arise from complex interactions between genetic susceptibility and environmental factors. Although environmental factors unequivocally influencing MS development have yet to be established, accumulating evidence singles out several candidates, including sunlight-UV exposure or vitamin D deficiency, viral infections, hygiene, and cigarette smoking. Vitamin D deficiency has been associated with different autoimmune diseases. Several investigations indicate 125 (OH)2 vitamin D plays a critical role in shaping T-cell response and inducing T cells with immunosuppressive properties. Likewise, helminth infections represent another potential environmental factor exerting immunomodulatory properties. Both epidemiological and experimental data provide evidence to support autoimmune down-regulation secondary to parasite infections in patients with MS, through regulatory T- and B-cell action, with effects extending beyond simple response to an infectious agent. Finally, different epidemiological studies have demonstrated that Epstein-Barr virus infection confers added risk of developing MS. Proposed mechanisms responsible for this association include activation and expansion of self-reactive T and B cells, lower threshold for self-tolerance breakdown, and enhanced autoreactive B-cell survival, all to be discussed in this review. Understanding environmental factors influencing propensity to MS will lead to new and more effective approaches to prevent and treat the disease. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; 132 Suppl S199:46-55. DOI:10.1111/ane.12431
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    ABSTRACT: The uneven geographical distribution of multiple sclerosis (MS) and the differences in disease severity observed between different ethnic groups indicate a complex interplay between genetic and environmental risk factors involved in the disease pathogenesis. Changes in MS risk after migration suggest influence of environmental factors on disease susceptibility. Whether the risk of MS is affected by socio-economic status (SES) is still controversial. In the present review, the combined knowledge from studies of migration and SES in MS is discussed. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; 132 Suppl S199:37-41. DOI:10.1111/ane.12429
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    ABSTRACT: This symposium started with an overview of recent incidence and prevalence data from the Scandinavian national registers and continued with a critical analysis of several alleged risk factors for MS. These risk factors are constantly changing and therefore might explain current incidence changes. In addition, they may be the subject of preventive measures. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; 132 Suppl S199:71-75. DOI:10.1111/ane.12434
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    ABSTRACT: In several international studies, an increasing women-to-men (w/m) ratio in patients with multiple sclerosis (MS) has been reported. Such sex ratios have been analysed by year of onset or by year of birth. In a Swedish study, data from the Swedish MS register (SMSreg) were used to analyse the w/m ratio in Sweden. The sex ratio was analysed both by year of birth (8834 patients) and by year of onset (9098 patients). No increased w/m ratio was seen in this study. The age-specific sex ratio did not demonstrate any significant changes. However, a new investigation of the sex ratio in Sweden, based on data from all available data sources (19,510 patients), showed a significantly increased w/m ratio of MS in Sweden from 1.70 to 2.67. Environmental factors such as cigarette smoking, hormonal factors and nutrition are of interest in this context, but the cause of the increasing w/m ratio in MS is yet not possible to explain. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
    Acta Neurologica Scandinavica 07/2015; 132 Suppl S199:42-45. DOI:10.1111/ane.12430