Related by context. Frequent words. (Click for all words.) 74 circumcision reduces 57 Human papillomavirus 56 Sexually active 55 discordant couples 55 uncircumcised men 54 Human Papilloma Virus 54 Ushercell 53 sexually transmitted infection 53 Sexually Transmitted Infections 53 Human Papillomavirus 53 sexually transmitted infections STIs 53 oropharyngeal cancer 53 superinfection 53 syphilis gonorrhea 53 HPV infection 53 condom usage 53 causes genital warts 53 Therein lurks 52 Unprotected sex 52 anal cancers 52 HIV infection 52 CAPRISA 52 seroprevalence 52 unprotected anal sex 52 Genital herpes 51 pre exposure prophylaxis 51 Epidemiological studies 51 MTCT 51 serologic 51 Chlamydia trachomatis 51 HIV uninfected 51 vaginal cancers 51 sexually active 51 bacterial vaginosis 51 AIDS Epidemic Update 51 Male circumcision 51 HPV# 51 Sexually Transmitted Disease 51 CDC Morbidity 50 human papillomavirus HPV 50 human papilloma viruses 50 human papillomavirus HPV vaccine 50 chronic HCV infection 50 CANCER peer reviewed 50 HPV infections 50 Acquired Immune Deficiency Syndromes 50 chlamydia gonorrhea 50 Diabetologia 49 iPrEx 49 HIV prevalence 49 journal Epidemiology 49 HBV infection 49 elevated CRP 49 premenopausal breast cancer 49 seropositive 49 Human Papillomavirus HPV 49 Human Papilloma Virus HPV 49 PrEP 49 genotoxicity 49 HPV 49 Gardasil protects 48 users IDUs 48 Pharmacoepidemiology 48 Arch Intern Med 48 #:#-# [035] 48 STIs 48 beta carotene supplements 48 Arch Gen Psychiatry 48 HPV human papillomavirus 48 hepatitis C HCV 48 Chlamydia pneumoniae 48 BRCA mutation 48 seroprotection 48 inverse association 48 journal Clinical Infectious 48 seronegative 48 coinfected 48 HCV infections 48 sexually transmitted 47 invasive cervical cancer 47 Influenza vaccination 47 Johnson Aziga 47 AIDS Clinical Trials 47 Prevention Morbidity 47 chikungunya virus 47 male circumcision 47 journal Occupational 47 hormonal contraception 47 BRCA2 mutations 47 N Engl J 47 Molecular Cancer 47 unprotected sexual intercourse 47 trichomoniasis 47 Arch Neurol 47 JAMA. 47 chlamydia 47 post exposure prophylaxis 47 WNV infection 47 virologic failure 47 By Yoon Ja 47 anal intercourse