1. Division of General Internal Medicine and Health Services Research, University of California Los Angeles, Los Angeles, CA, USA
2. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
3. Johns Hopkins University School of Nursing, Baltimore, MD, USA
4. Center for Child and Community Health Research (CCHR), Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
5. Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
6. Center of Excellence for Psychosocial and Systematic Research, Harvard Medical School, Boston, MA, USA
7. Center for Addiction Medicine, Massachusetts General Hospital, Boston, MA, USA
8. Sheppard Pratt, Baltimore, MD, USA
9. Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA