HOFFMANN, E [ON THE CLINICAL SIGNIFICANCE OF PARTIAL PERSISTENCE OF THE DUCTUS ARTERIOSUS]. [electronic resource] - Zentralblatt fur Chirurgie Sep 1964 - 1343-6 p. digital Publication Type: Journal Article ISSN: 0044-409X Subjects--Topical Terms: Ductus ArteriosusDuctus Arteriosus, PatentHumansPathology