“…Seven studies were classified as high quality [ 15 , 16 , 17 , 20 , 22 , 23 , 24 ], and four as low quality [ 18 , 19 , 21 , 25 ]. Randomization was performed in eight studies [ 15 , 16 , 17 , 18 , 20 , 21 , 22 , 23 ], seven specified the similarity between groups at baseline evaluation [ 16 , 17 , 18 , 19 , 20 , 22 , 23 ], and nine the inclusion and exclusion criteria [ 15 , 16 , 17 , 20 , 21 , 22 , 23 , 24 , 25 ]. Six studies applied a blinding procedure [ 15 , 16 , 17 , 20 , 22 , 23 ], and two performed an “intention-to-treat” analysis [ 15 , 23 ].…”