Csapo, A The placenta and the initiation of labor. [electronic resource] - Nederlandsch tijdschrift voor verloskunde en gynaecologie Aug 1965 - 229-62 p. digital Publication Type: Journal Article ISSN: 0301-2247 Subjects--Topical Terms: Abortion, Missed--diagnosisFemaleHumansLabor, InducedPlacenta--physiologyPregnancy