... The follow-up periods of the pharmacists' interventions differed in each study and ranged between 1.5 [67] and 24 months [42]. One study followed up patient for 2 months [59], nine for 3 months [16,52,53,56,60,61,64,70,74], five for 4 months [21,25,31,45,68], three for 5 months [23,50,53], fourteen for 6 months [22,27,30,36,39,40,44,46,49,62,73,75], three for 8 months [18,55,72], four for 9 months [29,33,37,41], eighteen for 12 months [20,24,26,28,35,38,43,47,48,51,54,63,65,66,69,71,76,77], one for 13 months [32] and another one for 16 months [10]. The most common follow-up period for the interventions was 12 months (n = 19, 31.1%), and the mean intervention duration was 7.8 months. ...