1. DIMi, Department of Internal Medicine and Medical Specialties, Section of Geriatrics, University of Genoa, Genoa, Italy
2. DISSAL, Department of Health Science, University of Genoa, Genoa, Italy
3. IRCCS AUO San Martino Hospital, Section of Geriatrics, Genoa, Italy
4. Département de Pharmacologie, Faculté de Médecine, INSERM CIC 501 and U766, Université d’Auvergne, CHU Clermont-Ferrand, Clermont-Ferrand, France
5. Collectif Doloplus, Centre de Soins Palliatifs, CHR Metz-Thionville, Thionville, France