Echographic survey of twin fetal growth: a plea for specific charts for twins.
D002508:Cephalometry; D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis; D005333:Fetus / Q000033:anatomy & histology*; D005865:Gestational Age; D006128:Growth; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D012015:Reference Standards; D014427:Twins; D014465:Ultrasonics