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International Journal of Infectious Diseases > 2016 > 49 > C > 171-178
American Journal of Obstetrics and Gynecology > 2009 > 201 > 6 > 547-552
International Journal of Infectious Diseases > 2016 > 49 > C > 171-178
American Journal of Obstetrics and Gynecology > 2009 > 201 > 6 > 547-552