1. Divisions of Geriatric Medicine and General Internal Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
2. School of Nursing, University of Minnesota – Twin Cities, Minneapolis, MN, USA
3. Division of Biostatistics, School of Public Health, University of Minnesota – Twin Cities, Minneapolis, MN, USA
4. Department of Biobehavioral Health Science, College of Nursing, University of Illinois – Chicago, Chicago, IL, USA