1 Gérontopôle, Centre Hospitalier Universitaire de Toulouse, Toulouse, France; Inserm UMR1027, Université de Toulouse III Paul Sabatier, Toulouse, France.
2 Divisions of Geriatric Medicine and Endocrinology, Saint Louis University School of Medicine, St Louis, MO, USA.
3 Gérontopôle, Centre Hospitalier Universitaire de Toulouse, Toulouse, France.
4 University of Maryland, School of Nursing, Baltimore, MD, USA.
5 Sinclair School of Nursing and Family and Community Medicine, University of Missouri, Columbia, MO, USA.
6 School of Nursing, The Hong Kong Polytechnic University, Special Administrative Region of the People's Republic of China.
7 Menzies Health Institute Queensland, Griffith University, Nathan, Queensland, Australia.
8 Département Universitaire de Médecine Générale, Université de Toulouse III Paul Sabatier, France.
9 Inserm UMR1027, Université de Toulouse III Paul Sabatier, Toulouse, France; Département Universitaire de Médecine Générale, Université de Toulouse III Paul Sabatier, France.