A longitudinal study of fetal biparietal diameter measurements in Chinese women.
D002508:Cephalometry / Q000379:methods; D002681:China / Q000208:ethnology; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D006801:Humans; D007231:Infant, Newborn; D008137:Longitudinal Studies; D008297:Male; D010294:Parietal Bone / Q000033:anatomy & histology*; D011247:Pregnancy; D012846:Singapore; D014463:Ultrasonography