When pregnancy threatens mother and child.
D000328:Adult; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011225:Pre-Eclampsia / Q000175:diagnosis / Q000209:etiology / Q000451:nursing*; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000451:nursing; D012306:Risk