title: The authors reply.
authors.affiliation: MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, People's Republic of China.
authors.forename: Lisu
authors.initials: L
authors.lastname: Huang
authors.forename: Yixiao
authors.initials: Y
authors.lastname: Bao
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
mesh_terms: D001249:Asthma / Q000453:epidemiology*; D005260:Female; D006801:Humans; D051556:Hyperbilirubinemia, Neonatal / Q000453:epidemiology*; D008297:Male