title: Low CD4+ T-cell surface CCR5 density as a cause of resistance to in vivo HIV-1 infection.
mesh_terms: D015496:CD4-Positive T-Lymphocytes / Q000378:metabolism*; D005260:Female; D015658:HIV Infections / Q000276:immunology*; D018023:HIV Seronegativity; D015497:HIV-1 / Q000472:pathogenicity; D006801:Humans; D007113:Immunity, Innate; D008297:Male; D019713:Receptors, CCR5 / Q000378:metabolism*
chemical_list: D019713:Receptors, CCR5