title: CD4 (T4+) lymphocytes in semen of healthy heterosexual men: implications for the transmission of AIDS.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000473:pathology / Q000635:transmission*; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D012661:Semen / Q000473:pathology*; D006377:T-Lymphocytes, Helper-Inducer / Q000473:pathology*