“…After thoroughly reading the full text, 56 articles that were inconsistent with the research results were excluded, and ultimately 26 articles were included. 3 , 13 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 The basic characteristics of the included studies are detailed in Table 1 . To obtain the latest pooled results, articles published since 1 January 2010 were merely included.…”