title: CD4 counts as surrogate markers for progression to AIDS.
authors.forename: A N
authors.initials: AN
authors.lastname: Phillips
authors.forename: C A
authors.initials: CA
authors.lastname: Sabin
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000276:immunology*; D015496:CD4-Positive T-Lymphocytes / Q000187:drug effects*; D006801:Humans; D007958:Leukocyte Count / Q000187:drug effects; D012107:Research Design; D013223:Statistics as Topic; D015215:Zidovudine / Q000494:pharmacology*
chemical_list: D015215:Zidovudine