“…Eight studies had < 100 participants [5,20,26,30,32,34,35,39], 11 had 100-600 participants [6,18,21,22,24,25,27,28,31,37,38], and four had > 1000 participants [7,19,23,29]. Most of the studies were conducted over a period of ≤ 12 months (n = 14) [5,7,18,19,24,26,28,29,31,[34][35][36][37]39], whereas 10 studies had study durations ≥ 14 months [6,[20][21][22][23]25,30,32,33,38]. One study did not report the duration as it was still ongoing when published [27].…”