South Dakota prenatal care study. V. Babies: length of gestation.
D000293:Adolescent; D000328:Adult; D005260:Female; D005333:Fetus; D005865:Gestational Age; D006801:Humans; D007743:Labor, Obstetric; D008875:Middle Aged; D011247:Pregnancy; D011248:Pregnancy Complications; D011295:Prenatal Care; D013023:South Dakota