1. Department of Geriatrics and Aging Research, University Hospital Zurich, Zurich, Switzerland2Centre on Aging and Mobility, University of Zurich, Zurich, Switzerland
2. Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts
3. Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
4. Department of Geriatrics, University of Basel, Basel, Switzerland
5. Centre on Aging and Mobility, University of Zurich, Zurich, Switzerland
6. Department of Orthopedic Surgery, University of Basel, Basel, Switzerland
7. Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts