1. Division of Geriatrics, Department of Medicine, University of California , San Francisco, San Francisco, CA, USA
2. San Francisco Veterans Affairs (VA) Health Care System, San Francisco , CA, USA
3. School of Music, College of Fine Arts, University of Arizona , Tucson, AZ, USA
4. Applied Intercultural Arts Research, Graduate College, University of Arizona , Tucson, AZ, USA
5. Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco , San Francisco, CA, USA
6. San Francisco VA Health Care System, San Francisco , CA, USA
7. Department of Psychiatry and Behavioral Sciences, University of California, San Francisco , San Francisco, CA, USA
8. Department of Epidemiology & Biostatistics, University of California, San Francisco , San Francisco, CA, USA
9. Department of Neurology, University of California, San Francisco , San Francisco, CA, USA
10. Institute for Health & Aging, University of California, San Francisco , San Francisco, CA, USA