ACOG Practice Bulletin #56: Multiple gestation: complicated twin, triplet, and high-order multifetal pregnancy.
D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000517:prevention & control*; D011272:Pregnancy, Multiple; D011295:Prenatal Care / Q000592:standards*; D014310:Triplets; D014427:Twins; D014481:United States