Ingo Marzi

University Hospital Frankfurt, Frankfurt, Hesse, Germany

Are you Ingo Marzi?

Claim your profile

Publications (423)681.86 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Background: To date, the Aptis distal radioulnar joint (DRUJ) prosthesis by Scheker is the only total, bipolar prosthesis available. In the literature, only few data exist concerning the prosthesis and its surgical technique. Aim of the present study was the evaluation of the medium-term clinical and radiological outcome following implantation of the Aptis DRUJ prosthesis. Methods and Patients: 5 patients (4 women and 1 man) with mean age of 40.2 (30-65) years underwent secondary implantation of the Aptisprosthesis between February 2006 and May 2013. The average date of the follow-up was after 36 (24-48) months. Besides the complications, the wrist range of motion (ROM) and the strength in grip were measured. The quality of pain was determined using a visual analogue pain scale from 0-10. In follow-up X-ray controls, bone resorption and bony abnormalities were evaluated. The DASH score as well as the postoperative subjective satisfaction of the patients were recorded. Results: No patient required removal of the prosthesis. Only 1 patient underwent secondary surgery in which debridement of the screw tip over the radius was required. The postoperative range of motion in pronation and supination was measured with 78 (70-90)° and 82 (70-90)°. The average grip strength amounted to 29 (24-32) kg. This represented 85 (76-100)% of the value of the contralateral side. Postoperative pain symptoms on the visual analogue pain scale were measured with 0 points at rest and with 1.2 (0-2) points under strain. Radiological evaluation showed bone resorption at the radial peg in 2 patients, but without evidence of implant loosening. The DASH score was recorded with 37 (13-75) points. All patients were satisfied or very satisfied after the surgical treatment. Conclusion: The Aptis prosthesis is a safe and efficient treatment option for previously failed surgery of the DRUJ. © Georg Thieme Verlag KG Stuttgart · New York.
    Handchirurgie · Mikrochirurgie · Plastische Chirurgie 06/2015; DOI:10.1055/s-0035-1550035 · 0.54 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Increased local and systemic levels of interleukin (IL)‑6 are associated with inflammatory processes, including neutrophil infiltration of the alveolar space, resulting in lung injury. Our previous study demonstrated the beneficial anti‑inflammatory effects of acute exposure to ethanol (EtOH) in an acute in vivo model of inflammation. However, due to its side‑effects, EtOH is not used clinically. In the present study, the effects of EtOH and ethyl pyruvate (EtP) as an alternative anti‑inflammatory drug prior to and following application of an IL‑6 stimulus on cultured A549 lung epithelial cells were compared, and it was hypothesized that treatment with EtOH and EtP reduces the inflammatory potential of the A549 cells. Time‑ and dose‑dependent release of IL‑8 from the A549 cells was observed following stimulation with IL‑6. The release of IL‑8 from the A549 cells was assessed following treatment with EtP (2.5‑10 mM), sodium pyruvate (NaP; 10 mM) or EtOH (85‑170 mM) for 1, 24 or 72 h, prior to and following IL‑6 stimulation. The adhesion capacities of neutrophils to the treated A549 cells, and the expression levels of cluster of differentiation (CD)54 by the epithelial cells were measured. Treatment of the A549 cells with either EtOH or EtP significantly reduced the IL‑6‑induced release of IL‑8. This effect was observed in the pre‑ and post‑stimulatory conditions, which is of therapeutic importance. Similar data was revealed regarding the IL‑6‑induced neutrophil adhesion to the treated A549 cells, in which pre‑ and post‑treatment with EtOH or EtP decreased the adhesion capacity, however, the results were dependent on the duration of incubation. Incubation durations of 1 and 24 h decreased the adhesion rates of neutrophils to the stimulated A549 cells, however, the reduction was only significant at 72 h post‑treatment. The expression of CD54 was reduced only following treatment for 24 h with either EtOH or EtP, prior to IL‑6 stimulation. Therefore, EtOH and EtP reduced the inflammatory response of lung epithelial cells, and the potential of EtP to mimic EtOH was observed in the pre‑ and post‑treatment conditions.
    Molecular Medicine Reports 05/2015; DOI:10.3892/mmr.2015.3764 · 1.48 Impact Factor
  • RöFo - Fortschritte auf dem Gebiet der R 04/2015; 187(S 01). DOI:10.1055/s-0035-1551043 · 1.96 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Hintergrund Die Diagnostik von Ellenbogenverletzungen stellt eine besondere Herausforderung dar. Nicht selten werden hier relevante Verletzungen mit Langzeitfolgen übersehen. Diagnostik Grundlage der Diagnostik ist die Kenntnis der möglichen Verletzungsmuster sowie der alterstypischen Verteilung der einzelnen Verletzungen. Ziel ist es, in der Akutdiagnostik eine aktiv behandlungsbedürftige Verletzung zu erkennen bzw. auszuschließen. Dabei bildet das konventionelle Röntgenbild in 2 Ebenen nach wie vor die Basis der bildgebenden Diagnostik. Die Magnetresonanztomographie spielt häufig bei prolongierten Heilverläufen zum Ausschluss z. B. einer okkulten Fraktur oder von Knorpelläsionen eine Rolle. Aufgrund der geringen Ossifikation beim Kind wird die Computertomographie i.d.R. erst beim Adoleszenten zur Beurteilung der seltenen Gelenkfraktur des distalen Humerus eingesetzt. Die Sonographie ermöglicht die Darstellung nichtossifizierter Anteile und von Frakturen, die im Röntgen nicht sichtbar sind.
    Trauma und Berufskrankheit 03/2015; 17(S1):74-77. DOI:10.1007/s10039-014-2118-y
  • [Show abstract] [Hide abstract]
    ABSTRACT: Outcome after traumatic brain injury (TBI) in the elderly has not been fully elucidated. The present retrospective observational study investigates the age-dependent outcome of patients suffering from severe isolated TBI with regard to operative and non-operative treatment. Data were prospectively collected in the TraumaRegister DGU(®). Anonymous datasets of 8629 patients with isolated severe blunt TBI (AISHead≥3, AISBody≤1) documented from 2002 to 2011 were analysed. Patients were grouped according to age: 1-17, 18-59, 60-69, 70-79 and ≥80 years. Cranial fractures (44.8%) and subdural haematomas (42.6%) were the most common TBIs. Independent from the type of TBI the group of patients with operative treatment declined with rising age. Subgroup analysis of patients with critical TBI (AISHead=5) revealed standardised mortality ratios (SMRs) of 0.81 (95% CI 0.75-0.87) in case of operative treatment (n=1201) and 1.13 (95% CI 1.09-1.18) in case of non-operative treatment (n=1096). All age groups ≥60 years showed significantly reduced SMRs in case of operative treatment. Across all age groups the group of patients with low/moderate disability according to the GOS (4 or 5 points) was higher in case of operative treatment. Results of this retrospective observational study have to be interpreted cautiously. However, good outcome after TBI with severe space-occupying haemorrhage is more frequent in patients with operative treatment across all age groups. Age alone should not be the reason for limited care or denial of operative intervention. Copyright © 2015. Published by Elsevier Ltd.
    Injury 03/2015; DOI:10.1016/j.injury.2015.02.013 · 2.46 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: aim: Cell based therapy by cultivated stem cells (mesenchymal stem cells (MSC), endothelial progenitor cells (EPC)) in large-sized bone defects have already shown improved vascularization and new bone formation. But these methods are clinically afflicted with disadvantages. Another heterogeneous bone marrow cell population, so called bone marrow-derived mononuclear cells (BMC) has yet been used clinically and showed improved vascularization in ischemic limbs or myocardium. For clinical use a certified process has been established. BMC were isolated from bone marrow aspirate by density gradient centrifugation, washed, cleaned and given back to patients within several hours. This investigation tested the ability of human BMC seeded on b-tricalcium phosphate (β-TCP) and placed into a large rat bone defect to improve bone healing process in vivo. Methods: Human EPC were isolated from buffy coat and MSC or BMC, respectively, were isolated from bone marrow aspirate by density gradient centrifugation. 1.0 x106 cells were loaded onto 750 µl β-TCP (0.7-1.4 mm). Large femural defects (6mm) in athymic rats were created surgically and stabilized with internal fixateur. The remaining defects were filled with β-TCP granules alone (group 1), β-TCP+ EPC/MSC (group 2) or β-TCP+ BMC (group 3). After 8 weeks histomorphometric analysis (new bone formation), radiological µCT-analyses (bony bridging) and biomechanical testing (3-point-bending) were achieved. Moreover a tumorgenicity study were performed to evaluate safety of BMC implantation after 26 weeks. For statistical analysis Kruskal-Wallis-test was used. Results: 8 weeks after implantation of EPC/MSC or BMC respectively, we detected significantly more new bone formation compared to control. In group 2 and 3 bony bridging of the defect was seen. In the control group more chondrocytes and osteoid was detected. In BMC and EPC/MSC group, respectively less chondrocytes and significantly more and advanced bone formation was observed. Biomechanical stability of the bone regenerate was significantly enhanced if BMC and EPC/MSC, respectively were implanted compared to control. Moreover, no tumor formation was detected neither macroscopically nor histologically after 26 weeks of BMC implantation. Discussion: Implanted BMC suggests that a heterogeneous cell population may provide a powerful cellular therapeutic strategy for bone healing in a large bone defect in humans.
    Tissue Engineering Part A 02/2015; 21(9-10). DOI:10.1089/ten.TEA.2014.0410 · 4.70 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of our study was to evaluate minimally invasive sacroiliac screw fixation for treatment of posterior pelvic instability with the help of CT controlled guidewires, assess its accuracy, safety and effectiveness, and discuss potential pitfalls. 100 guidewires and hollow titan screws were inserted in 38 patients (49.6±19.5 years) suffering from 35 sacral fractures and/or 16 sacroiliac joint disruptions due to 33 (poly-)traumatic, 2 osteoporotic and 1 post-infectious conditions. The guidewire and screw positions were analyzed in multiplanar reconstructions. The mean minimal distance between guidewire and adjacent neural foramina was 4.5±2.01mm, with a distinctly higher precision in S1 than S2. Eight guidewires showed cortical contacts, resulting in a total of 2% mismatched screws with subsequent wall violation. The fracture gaps were reduced from 3.6±0.53mm to 1.2±0.54mm. During follow-up 3 cases of minor iatrogenic sacral impaction (<5mm) due to the bolting and 2 cases of screw loosening were observed. Interventional time was 84.0min with a mean of 2.63 screws per patient whilst acquiring a mean of 93.7 interventional CT-images (DLP 336.7mGycm). The treatment of posterior pelvic instability with a guidewire-based screw insertion technique under CT-imaging results in a very high accuracy and efficacy with a low complication rate. Careful attention should be drawn to radiation levels. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.
    European Journal of Radiology 02/2015; 84(2):290-4. DOI:10.1016/j.ejrad.2014.11.017 · 2.16 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Sliding-gantry computed tomography offers an interesting variety of treatment options for emergency radiology and clinical routine. The Frankfurt 2-room installation provides an interdisciplinary, multifunctional, and cost-effective concept. It is based on a magnetically sealed rail system for the permanent movement of the gantry between 2 adjacent rooms with fixed-mounted tables. In case of emergency or intensive care patients, routine scanning can be performed in room 1 until computed tomography diagnosis is required in room 2 and can then be continued in room 1 again. Moreover, this concept allows the simultaneous handling of 2 emergency patients.
    Journal of Computer Assisted Tomography 01/2015; 39(2). DOI:10.1097/RCT.0000000000000199 · 1.60 Impact Factor
  • Trauma und Berufskrankheit 01/2015; DOI:10.1007/s10039-015-0007-7
  • Trauma und Berufskrankheit 01/2015; DOI:10.1007/s10039-015-0003-y
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Background Although it is often criticised, the lecture remains a fundamental part of medical training because it is an economical and efficient method for teaching both factual and experimental knowledge. However, if administered incorrectly, it can be boring and useless.Feedback from peers is increasingly recognized as an effective method of encouraging self-reflection and continuing professional development. The aim of this observational study is to analyse the impact of written peer feedback on the performance of lecturers in an emergency medicine lecture series for undergraduate students.Methods In this prospective study, 13 lecturers in 15 lectures on emergency medicine for undergraduate medical students were videotaped and analysed by trained peer reviewers using a 21-item assessment instrument. The lecturers received their written feedback prior to the beginning of the next years¿ lecture series and were assessed in the same way.ResultsIn this study, we demonstrated a significant improvement in the lecturers¿ scores in the categories `content and organisation¿ and `visualisation¿ in response to written feedback. The highest and most significant improvements after written peer feedback were detected in the items `provides a brief outline¿, `provides a conclusion for the talk¿ and `clearly states goal of the talk¿.Conclusion This study demonstrates the significant impact of a single standardized written peer feedback on a lecturer¿s performance.
    Scandinavian Journal of Trauma Resuscitation and Emergency Medicine 12/2014; 22(1):71. DOI:10.1186/s13049-014-0071-1 · 1.93 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Emergency department personnel are at risk of occupational exposure to blood-borne pathogens. Previous studies have shown that the prevalence of human immunodeficiency virus (HIV), hepatitis B (HBV) and hepatitis C (HCV) virus infections among trauma patients is higher compared to the general population.
    Der Unfallchirurg 11/2014; DOI:10.1007/s00113-014-2657-5 · 0.61 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The nomenclature for patients with multiple injuries with high mortality rates is highly variable, and there is a lack of a uniform definition of the term polytrauma. A consensus process was therefore initiated by a panel of international experts with the goal of assessing an improved, database-supported definition for the polytraumatized patient. The consensus process involved the following: RESULTS: A total of 28,211 patients in the trauma registry met the inclusion criteria. The mean (SD) age of the study cohort was 42.9 (20.2) years (72% males, 28% females). The mean (SD) ISS was 30.5 (12.2), with an overall mortality rate of 18.7% (n = 5,277) and an incidence of 3% of penetrating injuries (n = 886). Five independent physiologic variables were identified, and their individual cutoff values were calculated based on a set mortality rate of 30%: hypotension (systolic blood pressure ≤ 90 mm Hg), level of consciousness (Glasgow Coma Scale [GCS] score ≤ 8), acidosis (base excess ≤ -6.0), coagulopathy (international normalized ratio ≥ 1.4/partial thromboplastin time ≥ 40 seconds), and age (≥70 years). Based on several consensus meetings and a database analysis, the expert panel proposes the following parameters for a definition of "polytrauma": significant injuries of three or more points in two or more different anatomic AIS regions in conjunction with one or more additional variables from the five physiologic parameters. Further validation of this proposal should occur, favorably by mutivariate analyses of these parameters in a separate data set.
    Journal of Trauma and Acute Care Surgery 11/2014; 77(5):780-786. DOI:10.1097/TA.0000000000000453 · 1.97 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this retrospective monocenter study was to evaluate a monophasic multidetector computed tomography (MDCT) protocol with a fixed delay for patients with polytrauma.A total of 2086 patients were evaluated retrospectively. For the intravenous contrast media, we used a fixed protocol with an injection for an adult patient of 120 mL at a rate of 2 mL/s.In the venous phase, we detected injuries of parenchyma and localized ongoing bleedings in regard to the clinical follow-up, with regard to the easy feasibility and the quickness with only one scan.Monophasic venous injection protocol can detect all injuries in the whole-body MDCT for patients with polytrauma.
    Clinical Imaging 10/2014; DOI:10.1016/j.clinimag.2014.09.011 · 0.60 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Abstract Background: Trauma patients sustaining abdominal trauma exhibit high risk of organ failure and/or sepsis aggravating morbidity and mortality during the post-traumatic course. The present study re-evaluates L- and I-FABPs (small fatty acid binding proteins) as early biomarkers for abdominal injury (AI) in a large cohort of patients and analyzes their potential as indicators of specific organ failure and their association with sepsis and/or mortality in the post-traumatic course. Methods: This prospective study included 134 multiply traumatized patients (ISS≥16). Fifty-nine had AI (abbreviated AI Scale, AISAbd≥3) and 75 had no AI (noAI). Twenty healthy volunteers served as controls. Plasma I- and L-FABP levels were measured at the admittance to the emergency room (d0) and up to 10 days daily (d1-d10) using ELISA. Sepsis, organ failure, multiple organ failure (MOF) and mortality were assessed. Results: Median L- and I-FABP in the AI-group [258 (IQR=71-500) ng/mL and 328 (IQR=148-640) pg/mL, respectively] were higher compared to noAI-group [30 (IQR=18-50) ng/mL and 60 (IQR=40-202) pg/mL, p>0.05] on d0. Sensitivity and specificity to detect AI were 80% and 75% for L-FABP, 78% and 62% for I-FABP. Both FABPs decline with the post-traumatic course to control levels. On d0 and d1, FABPs correlate with the Sepsis-related Organ Failure Assessment (SOFA) score of the following day (d0: ρ:0.33, ρ:0.46, d1: ρ:0.48, ρ:0.35). No other correlations were found. Eight percent of all patients developed sepsis, 18% pneumonia, 4% urinary tract infection, 3% acute kidney failure and one MOF. FABPs correlated neither with Simplifed Acute Physiology Score (SAPS)-II nor to sepsis. All patients with acute kidney failure demonstrated enhanced L-FAPB levels before the increase of serum creatinine levels. Conclusions: Our results confirm the potential of L- and I-FABP to indicate abdominal injuries initially after trauma. Except L-FABP as indicator of acute kidney failure both FABPs have to be further evaluated as predictors for other organ failures, sepsis and/or mortality.
    Clinical Chemistry and Laboratory Medicine 10/2014; 53(5). DOI:10.1515/cclm-2014-0354 · 2.96 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Scoring systems commonly attempt to reduce complex clinical situations into one-dimensional values by objectively valuing and combining a variety of clinical aspects. The aim is to allow for a comparison of selected patients or cohorts. To appreciate the true value of scoring systems in patients with multiple injuries it is necessary to understand the different purposes of quantifying the severity of specific injuries and overall trauma load, being: (1) clinical decision making; (2) triage; (3) planning of trauma systems and resources; (4) epidemiological and clinical research; (5) evaluation of outcome and trauma systems, including quality assessment; and (6) estimation of costs and allocation of resources. For the first two, easy-to estimate scores with immediate availability are necessary, mainly based on initial physiology. More sophisticated scores considering age, gender, injury pattern/severity and more are usually used for research and outcome evaluation, once the diagnostic and therapeutic process has been completed. For score development large numbers of data are necessary and thus, it appears as a logical consequence that large registries as the TraumaRegister DGU(®) of the German Trauma Society (TR-DGU) are used to derive and validate clinical scoring systems. A variety of scoring systems have been derived from this registry, the majority of them with focus on hospital mortality. The most important among these systems is probably the RISC score, which is currently used for quality assessment and outcome adjustment in the annual audit reports. This report summarizes the various scoring systems derived from the TraumaRegister DGU(®) over the recent years.
    Injury 10/2014; 45 Suppl 3:S29-34. DOI:10.1016/j.injury.2014.08.014 · 2.46 Impact Factor
  • Orthopädie und Unfallchirurgie - Mitteilungen und Nachrichten 08/2014; 03(04):390-391. DOI:10.1055/s-0034-1387841
  • [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this work was to retrospectively evaluate clinical and radiological results after surgical treatment for scapholunate ligament ruptures.
  • [Show abstract] [Hide abstract]
    ABSTRACT: OBJECTIVE. The optimal treatment of intervertebral disk lesions accompanying thoracolumbar fractures remains controversial. To evaluate short- and medium-term progression of intervertebral disk lesions accompanying vertebral fractures, MRI scans obtained after trauma were compared with scans obtained at an average follow-up of 1 year, by means of our clinically useful classification of traumatic intervertebral disk lesions. MATERIALS AND METHODS. MRI scans of 54 disks in patients with trauma-induced single-level thoracolumbar fractures were analyzed retrospectively. All patients underwent posterior stabilization using a titanium internal fixator. Exclusion criteria were malignant vertebral collapse, spondylodiskitis, osteoporotic fractures, and degenerative disk disease in the uninjured disks. Morphologic changes and signal alterations of the adjacent disks were compared using routine MRI scans obtained after trauma and at an average follow-up of 1 year. Disks were divided according to their signals into four categories, from grade 0 to grade 3. RESULTS. Of the disks studied after trauma (n = 54), 27.8% were determined to be grade 0, 31.5% were grade 2, and 40.7% were grade 3. In the follow-up examination, MRI detected grade 0 in 13% of disks. Hence, more than 50% of the disks with grade 0 after trauma changed into grade 2 lesions, resulting in 46.3% grade 2 lesions. Grade 3 disk lesions (40.7%) remained the same without any sign of recovery. CONCLUSION. In the current study, we found progressive disk degradation and creeping in instrumented and nonfused segments in thoracolumbar fractures. For further validation, randomized controlled long-term outcome investigations seem mandatory as the next step in future clinical research.
    American Journal of Roentgenology 07/2014; 203(1):140-5. DOI:10.2214/AJR.13.11590 · 2.74 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Background. Hypoxia-inducible factor-1 α (HIF-1 α ) and NF- κ B play important roles in the inflammatory response after hemorrhagic shock and resuscitation (H/R). Here, the role of myeloid HIF-1 α in liver hypoxia, injury, and inflammation after H/R with special regard to NF- κ B activation was studied. Methods. Mice with a conditional HIF-1 α knockout (KO) in myeloid cell-line and wild-type (WT) controls were hemorrhaged for 90 min (30 ± 2 mm Hg) and resuscitated. Controls underwent only surgical procedures. Results. After six hours, H/R enhanced the expression of HIF-1 α -induced genes vascular endothelial growth factor (VEGF) and adrenomedullin (ADM). In KO mice, this was not observed. H/R-induced liver injury in HIF-1 α KO was comparable to WT. Elevated plasma interleukin-6 (IL-6) levels after H/R were not reduced by HIF-1 α KO. Local hepatic hypoxia was not significantly reduced in HIF-1 α KO compared to controls after H/R. H/R-induced NF- κ B phosphorylation in liver did not significantly differ between WT and KO. Conclusions. Here, deleting HIF-1 α in myeloid cells and thereby in Kupffer cells was not protective after H/R. This data indicates that other factors, such as NF- κ B, due to its upregulated phosphorylation in WT and KO mice, contrary to HIF-1 α , are rather key modulators of inflammation after H/R in our model.
    Mediators of Inflammation 06/2014; 2014:930419. DOI:10.1155/2014/930419 · 2.42 Impact Factor

Publication Stats

4k Citations
681.86 Total Impact Points


  • 2006–2015
    • University Hospital Frankfurt
      Frankfurt, Hesse, Germany
  • 2002–2015
    • Goethe-Universität Frankfurt am Main
      • • Klinik für Unfall-, Hand-, und Wiederherstellungschirurgie
      • • Center of Surgery
      Frankfurt, Hesse, Germany
  • 2013
    • Berufsgenossenschaftliche Unfallklinik Murnau
      Murnau, Bavaria, Germany
  • 2010–2013
    • Hospital Frankfurt Hoechst
      Frankfurt, Hesse, Germany
  • 2007–2009
    • Orthopädische Universitätsklinik Friedrichsheim
      Frankfurt, Hesse, Germany
    • Martin Luther University Halle-Wittenberg
      Halle-on-the-Saale, Saxony-Anhalt, Germany
  • 1989–2006
    • University of North Carolina at Chapel Hill
      • • Department of Medicine
      • • Department of Pharmacology
      North Carolina, United States
  • 1990–2004
    • Universität des Saarlandes
      Saarbrücken, Saarland, Germany
  • 2000
    • University of Amsterdam
      Amsterdamo, North Holland, Netherlands
    • University of Cologne
      Köln, North Rhine-Westphalia, Germany
  • 1993
    • Ludwig Boltzmann Institute for Experimental and Clinical Traumatology
      Wien, Vienna, Austria