1. Center for Addiction and Mental Health Research, Division of Research Kaiser Permanente Northern California Oakland California USA
2. Department of Psychiatry and Behavioral Sciences Weill Institute for Neurosciences, University of California, San Francisco San Francisco California USA
3. Department of Health Systems Science Kaiser Permanente Bernard J. Tyson School of Medicine Pasadena California USA
4. The Permanente Medical Group Addiction Medicine and Recovery Services Oakland California USA