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A multi-center survey of age of sexual debut and sexual behavior in Chinese women: Suggestions for optimal age of human papillomavirus vaccination in China

Sexual HealthEpidemiological TrendTeenage PregnancySexual AbuseWomen's HealthMulti-center SurveySocial SciencesOptimal AgePublic HealthSexual BehaviorEpidemiologySexual And Reproductive Health