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Levitt C, Hanvey L, Bartholomew S, Kaczorowski J, Chalmers B, Heaman M, Li X; Maternity Experiences Study Group Public Health Agency of Canada.Levitt C, et al. Among authors: kaczorowski j.J Obstet Gynaecol Can. 2011 Dec;33(12):1208-1217. doi: 10.1016/S1701-2163(16)35104-0.J Obstet Gynaecol Can. 2011.PMID: 22166274
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