[Placental weights at the National Institute of Perinatology].
D001724:Birth Weight; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008800:Mexico; D009929:Organ Size; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy
Pesos placentarios en el Instituto Nacional de Perinatología, DIF.