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Journal of Pediatric and Adolescent Gynecology > 2013 > 26 > 5 > 281-284
American Journal of Obstetrics and Gynecology > 2009 > 201 > 5 > 456.e1-456.e5
Journal of Pediatric and Adolescent Gynecology > 2013 > 26 > 5 > 281-284
American Journal of Obstetrics and Gynecology > 2009 > 201 > 5 > 456.e1-456.e5