1. From the Departments of Gerontology (OG, MM, RB, and PB) and Gastroenterology and Clinical Nutrition (SMS), University Hospital, Nice, France, and the Departments of Public Health (SA) and Internal Medicine and Clinical Gerontology (OG and BV), University Hospital, Institut National de la Sante et de la Recherche Medicale (INSERM) U558, Toulouse, France