Unlinked anonymous monitoring of HIV prevalence in England and Wales: data to the end of 1993.
D003219:Confidentiality; D004739:England / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000453:epidemiology / Q000635:transmission; D015528:HIV Seroprevalence / Q000639:trends*; D006801:Humans; D008297:Male; D011159:Population Surveillance; D012307:Risk Factors; D014852:Wales / Q000453:epidemiology