Growth of children whose mothers took folic acid during early pregnancy – Sino–US NTD Project

Caesarean delivery, caesarean delivery on maternal request and childhood overweight: a Chinese birth cohort study of 181 380 children

“…By December 1996, 210 849 singletons born alive to the enrolled women with gestational age Ն 28 weeks were monitored. Between March and July 2000, all children were enrolled for weight and height measurement (20).…”