Placental transfusion syndrome.
D000328:Adult; D000751:Anemia, Neonatal / Q000209:etiology*; D005260:Female; D005330:Fetofetal Transfusion / Q000150:complications*; D006801:Humans; D007231:Infant, Newborn; D011086:Polycythemia / Q000209:etiology*; D011247:Pregnancy