Peretti-Watel, Patrick; Riandey, Benoît; Dray-Spira, … - In: Population (french edition) 60 (2005) 4, pp. 525-550
The ANRS-EN12-VESPA 2003 survey interviewed a national, representative sample of the HIV-positive population attending hospital outpatient services. Conducting the survey in a hospital made it easier to identify and contact HIV-positive patients, but involved various biases : the role of the...