title: Comparing RNA PCR tests.
authors.forename: B
authors.initials: B
authors.lastname: Cheng
mesh_terms: D018791:CD4 Lymphocyte Count; D004279:DNA, Viral / Q000097:blood; D006678:HIV / Q000302:isolation & purification*; D015658:HIV Infections / Q000097:blood / Q000821:virology*; D006801:Humans; D016133:Polymerase Chain Reaction; D012367:RNA, Viral / Q000097:blood
chemical_list: D004279:DNA, Viral; D012367:RNA, Viral