1. Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
2. Indiana University Center for Aging Research, Indianapolis, IN, USA
3. Regenstrief Institute, Inc., Indianapolis, IN, USA
4. Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
5. Department of Psychology, The Ohio State University, Columbus, OH, USA
6. Department of Emergency Medicine, University of Colorado, School of Medicine, Aurora, Colorado, USA
7. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
8. Department of Family Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
9. School of Public Health, University of California San Diego, San Diego, California, USA
10. VA Eastern Colorado Geriatric Research Education and Clinical Center, Aurora, CO, USA