1. formerly of Center for Tobacco Control Research & Education, University of California, San Francisco
2. Center for Tobacco Control Research & Education, University of California, San Francisco
3. Department of Psychiatry & Behavioral Sciences, University of California, San Francisco
4. Division of Geriatrics, Department of Medicine, University of California, San Francisco
5. Section of Mental Health Services, San Francisco Veterans Affairs Medical Center, San Francisco, California
6. Division of Internal Medicine, Department of Medicine, University of California, San Francisco
7. Section of General Internal Medicine, San Francisco Veterans Affairs Medical Center, San Francisco, California