title: Gene transfer trial.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D018014:Gene Transfer Techniques; D015752:Genes, env; D015757:Genes, rev; D006678:HIV / Q000235:genetics; D015658:HIV Infections / Q000628:therapy*; D006801:Humans; D008875:Middle Aged