“…The study selection process and reasons for exclusion are described in Figure S1 . After removal of articles not pertinent to the design of the current study, 11 reports 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 with suitable data were included in the final meta‐analysis. All selected papers were published after 2001.…”