Home » List of authors » Patrick Peretti-Watel Patrick Peretti-Watel List of articlesVol. 60, 2005/4Surveying the HIV-Positive Population in FranceThe VESPA 2003 surveyDefinitions, collection methods and measurementVol. 57, 2002/3The Impact of Data Collection Methodology on the Reporting of Illicit Drug Use by AdolescentsSelected from Population 2001