title: Cohorts, trials, and evidence: expanding our confidence in guidelines for antiretroviral resistance testing.
authors.forename: Paul
authors.initials: P
authors.lastname: Volberding
mesh_terms: D023241:Antiretroviral Therapy, Highly Active; D005838:Genotype; D015658:HIV Infections / Q000188:drug therapy* / Q000401:mortality / Q000821:virology*; D015497:HIV-1 / Q000187:drug effects* / Q000235:genetics; D006801:Humans; D008826:Microbial Sensitivity Tests; D019370:Observation; D010641:Phenotype; D012107:Research Design / Q000592:standards