[Six observations on ligation of Botallo's duct].
D004373:Ductus Arteriosus; D004374:Ductus Arteriosus, Patent / Q000601:surgery*; D005318:Fetal Heart; D006801:Humans; D008026:Ligation
DUCTUS ARTERIOSUS, PATENT/surgery
Seis observaciones de ligadura del canal arterial de botal.