title: A fifth of people with HIV are unaware they are infected, report says.
authors.affiliation: London.
authors.forename: Nigel
authors.initials: N
authors.lastname: Hawkes
mesh_terms: D004739:England / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008403:Mass Screening