General methodology of the ANRS-Vespa2 survey
Author(s): Dray Spira R, Spire B, Lert F, Groupe ANRS (Agence Nationale de Recherches sur le Sida et les hépatites virales) - VESPA2
Publishing year: 2013
Pages: 321-4
Weekly Epidemiological Bulletin, 2013, n° 26-27, p. 321-4
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