[Surgical treatment of severe heart diseases in infants (specifically the infants under 6 months of age)].
D004374:Ductus Arteriosus, Patent / Q000601:surgery; D006330:Heart Defects, Congenital / Q000601:surgery*; D006345:Heart Septal Defects, Ventricular / Q000601:surgery; D006801:Humans; D006976:Hypertension, Pulmonary / Q000601:surgery; D007223:Infant; D007231:Infant, Newborn; D011651:Pulmonary Artery / Q000601:surgery