“…Among these papers were 10 literature reviews [9,[32][33][34][35][36][37][38][39][40], complemented with a meta-analysis in four [33,34,38,40]. These reviews described up to five randomized controlled trials [10,[41][42][43][44], 17 cohorts, case-control studies, or caseseries [11,[45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. One paper described pilot data to a later published RCT [61], two were case-reports [62,63].…”