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Semen
CD4 Lymphocyte Count
Polymerase Chain Reaction
HIV-1
Cytomegalovirus
Human Herpesvirus 8
HIV Infections
Cytomegalovirus Infections
Alzheimer's Disease
Male Homosexuality
Bisexuality
Virus Shedding
Risk Factors
Registries
Longitudinal Studies
Logistic Models
Predictive Value of Tests
RNA, Viral
Virology
Death Certificates
Co-Publications
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