1. Dr. Zoico is with the Cattedra di Geriatria, Universita' di Verona, Verona, Italy.
2. Dr. Roubenoff is Director of the Nutrition, Exercise Physiology, and Sarcopenia Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, 711 Washington Street, Boston, MA 02111, USA.