1. a INSERM Research Unit, Institut Paoli Calmettes, Marseille and Laboratory of Social Psychology , University of Aix-en-Provence , 379 'Epidemiology and Social Sciences Applied to Medical Innovation'
2. b INSERM Research Unit, Institut Paoli Calmettes, Marseille and Department of Internal Medicine and Hematology , Hôpital l'Archet , 379 'Epidemiology and Social Sciences Applied to Medical Innovation', Nice
3. c Department of Internal Medicine and Hematology , Hôpital l'Archet , Nice
4. d Department of Hematology, Institut Paoli Calmettes, and Day Care Unit , Hôpital Sainte Marguerite , Marseille
5. e INSERM Research Unit , Institut Paoli Calmettes, Marseille and Regional Center for Disease Control of South-Eastern France (ORS-PACA) , 379 'Epidemiology and Social Sciences Applied to Medical Innovation', Marseille
6. f INSERM Research Unit, Institut Paoli Calmettes, Marseille and Department of Economics , University of Aix-Marseille II , 379 'Epidemiology and Social Sciences Applied to Medical Innovation', France