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Pediatrics
Epidemiology & Population Health
Urology
Medicine
Surgery
Family and Social Medicine
Pathology
Psychiatry and Behavioral Sciences
Obstetrics & Gynecology and Women's Health
Sexual Behavior
Substance Abuse, Intravenous
Coitus
Condoms
Risk-Taking
Heterosexuality
Interpersonal Relations
Unsafe Sex
Homosexuality, Male
Papillomavirus Infections
Tumor Virus Infections
HIV Infections
Uterine Cervical Diseases
Uterine Cervical Neoplasms
Sexually Transmitted Diseases
Sexually Transmitted Diseases, Viral
Cervical Intraepithelial Neoplasia
Erectile Dysfunction
Vaginal Diseases
Sexual Dysfunction, Physiological
Cocaine-Related Disorders
Sexually Transmitted Diseases, Bacterial
Papillomaviridae
HIV
Human papillomavirus 16
Alphapapillomavirus
Drug Users
Hispanic Americans
HIV Seronegativity
HIV Seropositivity
Antibodies, Viral
DNA Probes, HPV
Oncogene Proteins, Viral
DNA, Viral
Longitudinal Studies
Multivariate Analysis
Age Factors
Logistic Models
Odds Ratio
Penile Prosthesis
Seroepidemiologic Studies
Contact Tracing
Vaginal Smears
AIDS Serodiagnosis
Contraception
Medical History Taking
Thailand
Mid-Atlantic Region
Penile Erection
Ejaculation