1 French institute for demographic studies, 133, boulevard Davout, 75980 Paris, France; Australian demographic and social research institute, Australian national university, Coombs Building #9, Fellows Road, ACTON 2601, ACT, Australia. Electronic address: [email protected].
2 University of Rennes, university hospital Rennes-Pontchaillou, 2, rue Henri Le Guilloux, 35033 Rennes cedex 9 France.
3 French institute for demographic studies, 133, boulevard Davout, 75980 Paris, France.
4 French institute for demographic studies, 133, boulevard Davout, 75980 Paris, France; AP-HP, university hospital Robert Debré, 48 boulevard Sérurier, 75019 Paris, France.
5 INSERM CIC 1431, university hospital of Besançon-Jean Minjoz, 25000 Besançon, France; Observatoire national de la fin de vie, 25, rue du plateau, 75019 Paris, France.