title: Evaluating the role of CD4-lymphocyte counts as surrogate endpoints in human immunodeficiency virus clinical trials.
authors.forename: N J
authors.initials: NJ
authors.lastname: Nagelkerke
authors.forename: A
authors.initials: A
authors.lastname: Mwatha
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000188:drug therapy; D018791:CD4 Lymphocyte Count; D002986:Clinical Trials as Topic / Q000379:methods; D003627:Data Interpretation, Statistical; D015658:HIV Infections / Q000276:immunology*; D006801:Humans; D011379:Prognosis; D015215:Zidovudine / Q000627:therapeutic use
chemical_list: D015215:Zidovudine