1. a Public Health Department , Nice University Hospital , Archet 1 Hospital, Route de St Antoine de Ginestière, 3079 , BP , Nice cedex 3 , France
2. b Public Health Department , Marseilles University Hospital , Marseilles , France
3. c Department of Infectious Diseases, Clinical Virology Unit , Nice University Hospital , Nice , France
4. d HIV and Hepatitis Care Centre , Marseilles University Hospital , Marseilles , France
5. e Educational Sciences Department , Rouen University , Rouen , France