title: Two subtypes of HIV-1 among injection-drug users in southern China.
authors.forename: X F
authors.initials: XF
authors.lastname: Yu
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: Y
authors.initials: Y
authors.lastname: Shao
authors.forename: C
authors.initials: C
authors.lastname: Beyrer
authors.forename: S
authors.initials: S
authors.lastname: Lai
mesh_terms: D002681:China / Q000453:epidemiology; D015752:Genes, env; D015658:HIV Infections / Q000150:complications / Q000453:epidemiology / Q000821:virology*; D015497:HIV-1 / Q000145:classification / Q000235:genetics*; D006801:Humans; D015819:Substance Abuse, Intravenous / Q000150:complications*