1. Department of Geriatric Internal Medicine, Hôpital René Muret and Université Paris Nord, Sevran, France;
2. Department of Gerontology, Hôpital Charles Foix, Ivry‐sur‐Seine, France;
3. Department of Gerontology, Hôpital Dupuytren, Draveil, France; and
4. Laboratoires Urgo, Dijon, France