Obladen, Michael. Interventions for Persisting Ductus Arteriosus in the Preterm Infant [electronic resource] / edited by Michael Obladen, Petra Koehne. - 1a ed. - Berlin, Heidelberg : Springer Medizin Verlag Heidelberg, 2005. - v.: digital ISBN: 9783540265092 Subjects--Topical Terms: NiƱos prematurosArterias --Cirugia