“…The information was drawn out from 18,430 CHD cases and 22,549 controls (Table 1 ). 9 , 10 , 11 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 Of the 35 obtained literatures after the preliminary search course, 17 met the present meta‐analysis including criteria. Among the eighteen eliminated papers, five of them were of review character.…”