1. Regional Center for Disease Control of South-Eastern France, and Health and Medical Research National Institute, Marseille
2. Assistance Publique-Hôpitaux de Marseille, Department of Penitentiary Care, Marseille
3. Assistance Publique Hôpitaux de Marseille, Medical Oncology Service, Marseille
4. Palliative care unit “La Maison”, Gardanne
5. Departmental Center of Private Health Professionals, Marseille
6. Health and Medical Research National Institute, and Department of Economics, University of Aix-Marseille II, Marseille, France, and the South-Eastern France Palliative Care Group