“…After the application of the eligibility criteria, 39 studies were finally included [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ], one (2.6%) of which was described as “rapid” [ 42 ] and two (5.1%) as “scoping” systematic reviews [ 30 , 50 ]. Thirteen (33%) of them also undertook a meta-analysis [ 14 , 16 , 18 , 19 , 24 , 25 , 27 , 36 , 38 , 40 , 48 ,…”