1. Institute for Health & Aging/Department of Social and Behavioral Sciences, School of Nursing, University of California, San Francisco (UCSF), San Francisco, CA, USA
2. Community Health Systems, School of Nursing, UCSF, San Francisco, CA, USA
3. School of Dentistry, UCSF, San Francisco, CA, USA
4. School of Public Health, University of California, Los Angeles, CA, USA
5. Psychiatry & Behavioral Sciences, School of Medicine, UCSF, San Francisco, CA, USA