title: PLoS takes a step backward.
authors.forename: John J
authors.initials: JJ
authors.lastname: Pippin
mesh_terms: D016915:AIDS Vaccines; D000818:Animals; D002986:Clinical Trials as Topic; D004195:Disease Models, Animal; D004353:Drug Evaluation, Preclinical / Q000379:methods; D015658:HIV Infections / Q000517:prevention & control*; D006801:Humans; D011323:Primates; D015203:Reproducibility of Results; D017211:Treatment Failure
chemical_list: D016915:AIDS Vaccines