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Xu X, Dailey AB, Peoples-Sheps M, Talbott EO, Li N, Roth J.Xu X, et al.J Womens Health (Larchmt). 2009 Aug;18(8):1169-78. doi: 10.1089/jwh.2008.1034.J Womens Health (Larchmt). 2009.PMID: 19630536Review.