title: Overview on source of the virus, viral measurement and variability.
authors.affiliation: University of Washington, Seattle, WA, USA.
authors.forename: Robert W
authors.initials: RW
authors.lastname: Coombs
mesh_terms: D005260:Female; D005836:Genitalia, Female / Q000821:virology*; D015658:HIV Infections / Q000276:immunology / Q000821:virology*; D015497:HIV-1 / Q000302:isolation & purification*; D006801:Humans; D012367:RNA, Viral / Q000302:isolation & purification; D014773:Virology / Q000379:methods
chemical_list: D012367:RNA, Viral