Greenbaum, Shirley Underlying mechanisms of retained placenta: Evidence from a population based cohort study. [electronic resource] - European journal of obstetrics, gynecology, and reproductive biology Sep 2017 - 12-17 p. digital Publication Type: Journal Article ISSN: 1872-7654 Standard No.: 10.1016/j.ejogrb.2017.06.035 doi Subjects--Topical Terms: AdultChorioamnionitis--epidemiologyCohort StudiesFemaleHumansPlacenta, Retained--epidemiologyPlacental Insufficiency--epidemiologyPlacentation--physiologyPregnancyRetrospective StudiesRisk FactorsUterine Contraction--physiologyYoung Adult