Related by context. Frequent words. (Click for all words.) 51 uncircumcised men 51 oropharyngeal cancer 51 PrEP 51 biologically plausible 50 serologic 50 CAPRISA 50 beta carotene supplements 50 pre exposure prophylaxis 50 PSA screening 50 Epidemiological studies 49 condom usage 49 CANCER peer reviewed 48 elevated CRP 48 microbicide gel 48 CDC Morbidity 48 mutated virus 48 antioxidant supplements 48 subgroup analyzes 47 epidemiological studies 47 BRCA2 mutations 47 premenopausal breast cancer 47 Sexually active 47 journal Epidemiology 47 HPV# 47 Arteriosclerosis Thrombosis 47 Opportunistic Infections 47 journal Lancet 47 HIV infection 46 journal Clinical Infectious 46 HPV infection 46 tenofovir gel 46 male circumcision 46 Male circumcision 46 Michael Thun 46 Medicine NEJM 46 Chlamydia trachomatis 46 observational studies 46 CROI 46 shorter telomeres 46 Acquired Immune Deficiency Syndromes 45 seroprotection 45 Diabetologia 45 vaginal gel 45 HPV vaccines 45 sexually transmitted infection 45 Health HSPH 45 BRCA mutations 45 AIDS Vaccine 45 empirical evidence 45 sustained virologic response 45 causes genital warts 45 phylogenetic analysis 45 manmade greenhouse gases 45 BRCA mutation 44 vaginal cancers 44 unprotected anal sex 44 ALLHAT 44 coinfected 44 vitro experiments 44 Retroviruses 44 Molecular Cancer 44 vaccine Cervarix 44 lymph node involvement 44 HCV infected 44 microbicide 44 Lancet Infectious Diseases 44 journal PLoS Medicine 44 invasive cervical cancer 44 swine origin 44 means optimists outnumber 44 Human Papilloma Virus 44 colorectal tumors 43 serological 43 HCV infection 43 scientifically valid 43 HPV 43 epidemiologic studies 43 chronic HCV infection 43 genotoxicity 43 dengue viruses 43 generalizability 43 journal Human Reproduction 43 rotavirus vaccines 43 Epidemiologic 43 journal Fertility 43 Lancet Oncology 43 USPSTF 43 journal Psychosomatic Medicine 43 body fatness 43 oral contraception 43 substudy 43 HIV prevalence 43 pandemic H#N# virus 43 Stomach cancer 43 conclusive evidence 43 conclusive 43 inverse association 43 human papillomavirus HPV 43 virologic failure 43 simian immunodeficiency virus 43 HBV infection