HACKE, W [A new method of testing for placental retention with barium sulfate, with a contribution on the symptomatology, therapy and diagnosis of partial retention]. [electronic resource] - Zentralblatt fur Gynakologie 1950 - 1004-17 p. digital Publication Type: Journal Article ISSN: 0044-4197 Subjects--Topical Terms: Barium SulfateFemaleHumansPlacentaPlacenta, RetainedPregnancy