title: The value of resistance testing.
authors: H
authors: H
authors: Albrecht
mesh_terms: D004352:Drug Resistance, Microbial; D005838:Genotype; D015658:HIV Infections / Q000821:virology*; D015497:HIV-1 / Q000187:drug effects* / Q000235:genetics; D006801:Humans; D010641:Phenotype; D016032:Randomized Controlled Trials as Topic; D019562:Viral Load