Superfecundity. Simpson oration: his problem and ours.
D000029:Abortion, Legal; D000758:Anesthesia / Q000266:history*; D005260:Female; D005298:Fertility; D006176:Gynecology / Q000266:history*; D049672:History, 19th Century; D006801:Humans; D008297:Male; D009774:Obstetrics / Q000266:history*; D010060:Ovulation; D011155:Population Control; D012606:Scotland