1 Division of Geriatrics, General Internal Medicine, and Palliative Medicine, Department of Medicine, Arizona Center on Aging, Interdisciplinary Consortium on Advanced Motion Performance, Southern Arizona Limb Salvage Alliance, Tucson, Arizona.
2 Department of Surgery, College of Medicine, Interdisciplinary Consortium on Advanced Motion Performance, Tucson, Arizona.
3 Center for Applied Genetics and Genomic Medicine, Arizona Health Sciences Center, University of Arizona, Tucson, Arizona.