title: [Ligation of a persistent ductus arteriosus in an extremely premature infant].
mesh_terms: D004374:Ductus Arteriosus, Patent / Q000601:surgery*; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000601:surgery*; D008026:Ligation; D011379:Prognosis
vernacular_title: Zur Problematik der Ligatur eines persistierenden Ductus arteriosus beim extrem unreifen Frühgeborenen.