“…Study quality was evaluated using the Jadad scale, and the results are presented in Supplemental 1. Overall, 2 trials had a score of 5, [ 39 , 55 ] 7 trials had a score of 4, [ 29 , 32 , 43 , 46 , 50 , 52 , 54 ] 7 trials had a score of 3, [ 36 , 37 , 42 , 44 , 45 , 48 , 56 ] 6 trials had a score of 2, [ 30 , 33 , 41 , 51 , 53 , 57 ] 6 trials had a score of 1, [ 28 , 34 , 35 , 38 , 47 , 49 ] and the remaining 2 trials had a score of 0. [ 31 , 40 ]…”