“…Of the 18 studies, three were systematic reviews, 27,28,31 five were meta-analyses, 22,23,29,30,34 and the remaining 10 were systematic reviews and meta-analyses. [18][19][20][21][24][25][26][35][36][37] The original study types included in one study were prospective and retrospective studies, 24 one study included randomized controlled trials (RCTs) and retrospective studies, 19 one study included RCTs and prospective trials, 37 and the rest included only RCTs. Ten studies assessed the risk of bias of the included primary studies using the Cochrane Collaboration's Risk of Bias Tool, 20,22,24,25,29,30,[34][35][36][37] and one study 27 assessed the quality of concealment of treatment allocation for randomization based on the scale developed by Schulz et al 40 Four studies assessed the quality of evidence using the Physiotherapy Evidence Database (PEDro), 21,23,28,31 two studies used the Oxford Centre for Evidence-Based Medicine (OCEBM), 18,19 and one study used GRADE.…”