“…A total of 554 papers were identified from the database searches, 261 of which were duplicates ( Fig 1 ). Twenty-two full-text articles were assessed for eligibility [ 14 , 32 , 38 , 39 , 28 , 48 – 63 ] of which, two full-text articles were excluded because they involved mixed patient samples [ 50 , 56 ], four were not RCTs [ 39 , 53 , 60 , 61 ], four had no relevant outcomes [ 14 , 55 , 62 , 63 ], one was reported twice [ 49 ], and three were only a protocol [ 38 , 58 , 59 ]. Eight studies involving 375 patients were included in our qualitative and quantitative analyses [ 32 , 28 , 48 , 49 , 51 , 52 , 54 , 57 ], and characteristics of the included studies, including samples, interventions, durations, frequencies, outcome assessment, outcome measures, and results, are presented in Table 1 .…”