1. Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, California
2. Prevention Sciences, School of Medicine, University of California, San Francisco, San Francisco, California
3. Center for Health and Community, University of California, San Francisco, San Francisco, California
4. Kaiser Permanente of Northern California Division of Research, San Francisco, California
5. Departments of Psychiatry and Pediatrics, University of California, San Francisco, San Francisco, California
6. Division of General Internal Medicine, Center for Vulnerable Populations, and San Francisco General Hospital, University of California, San Francisco, San Francisco, California