“…Most studies originated from the USA (52%) ( 10 , 23 , 27 – 31 , 33 , 39 – 42 , 45 , 46 , 50 – 54 , 58 – 65 , 70 – 73 , 78 , 84 ), Canada (12%) ( 11 , 21 , 32 , 36 , 48 , 49 , 80 ), and Germany (7.6%) ( 21 , 37 , 38 , 44 , 68 , 79 ). Most studies consisted in journal articles (68%) ( 10 , 21 , 23 , 25 – 28 , 30 , 31 , 33 – 40 , 43 – 46 , 48 , 50 – 53 , 57 – 59 , 61 , 62 , 64 – 68 , 70 , 72 – 77 , 79 , 80 , 84 ). The most popular journal was Epilepsy & Behavior, which published 17 (24%) studies in total ( 10 , 11 , 23 , 25 , 31 , 39 , 40 , 44 , 46 , 53 , 64 , 65 , 67 ...…”