00562nas a2200193   4500000000100000008004100001260001700042100001300059700001200072700001400084700001100098700001200109700001200121700001300133245019800146300001000344490000800354050000600362       2008                            d  c1283065971461 aCheng Y.1 aKong L.1 aDibley M.1 aYan H.1 aZeng L.1 aDang S.1 aChang S.00aImpact of micronutrient supplementation during pregnancy on birth weight, duration of gestation, and perinatal mortality in rural western China: double blind cluster randomised controlled trial  aa20010 v337  aY