1. Nutrition, Exercise Physiology, and Sarcopenia LaboratoryTufts UniversityBostonMassachusettsUSA
2. Research Division, Joslin Diabetes CenterHarvard Medical SchoolBostonMassachusettsUSA
3. Department of MedicineHarvard Medical SchoolBostonMassachusettsUSA
4. Nutritional Genomics Laboratory, U.S. Department of Agriculture Jean Mayer Human Nutrition Research Center on AgingTufts UniversityBostonMassachusettsUSA