Association between cesarean section and the risk of childhood asthma among preschool children in 4 cities.
CHEN Yun-xiao,Erigene Rutayisire,WU Xiao-yan,HUANG Kun,
YU Wei-ping,CHEN Shang-hui,YE He-yi,ZHANG An-hui,TAO Fang-biao
journal1 . 2017, (1): 14 -17 .  DOI: 10.11852/zgetbjzz2017-25-01-05