title: NIH examines 2 decades of HIV vaccine progress.
mesh_terms: D016915:AIDS Vaccines; D003906:Developing Countries; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control / Q000628:therapy; D006801:Humans; D009316:National Institutes of Health (U.S.); D014481:United States
chemical_list: D016915:AIDS Vaccines