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Schaap T, Bloemenkamp K, Deneux-Tharaux C, Knight M, Langhoff-Roos J, Sullivan E, van den Akker T; INOSS.Schaap T, et al.BJOG. 2019 Feb;126(3):394-401. doi: 10.1111/1471-0528.14833. Epub 2017 Aug 24.BJOG. 2019.PMID: 28755459