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HIV-1
HIV Infections
Acquired Immunodeficiency Syndrome
Cohort Studies
Risk Factors
Leukocyte Count
Prospective Studies
Longitudinal Studies
Multicenter Studies
Proportional Hazards Models
Incidence
HIV Seropositivity
CD4-Positive T-Lymphocytes
CD4 Lymphocyte Count
Homosexuality
Male Homosexuality
Bisexuality
Rwanda
Pregnancy
HIV Antibodies
Co-Publications
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