A Meta analysis of risk factors for asthma in Chinese children
LIU Shu-Jun, WANG Ting-Ting, CAO Shi-Yu, TAN Ya-Qing, CHEN Li-Zhang
CJCP . 2018, (3): 218 -223 .  DOI: 10.7499/j.issn.1008-8830.2018.03.011