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Objective
To study whether the occurrence and type of placental lesions vary according to the time of onset of COVID‐19 in pregnant women.
Design
Case–control study.
Setting
Departments of Gynaecology‐Obstetrics and Pathology, Strasbourg University Hospital, France.
Population
Cases were 49 placentas of women with COVID‐19. Controls were 50 placentas from women who had a past history of molar...