1. Department of Epidemiology Brown University School of Public Health Providence Rhode Island USA
2. Substance Use Epidemiology Program Rhode Island Department of Health Providence Rhode Island USA
3. Department of Psychiatry and Human Behavior Warren Alpert Medical School of Brown University Providence Rhode Island USA
4. Department of Psychiatry Rhode Island Hospital Providence Rhode Island USA
5. Department of Emergency Medicine David Geffen School of Medicine at University of California at Los Angeles Los Angeles California USA
6. Behavioral Healthcare Division Rhode Island Department of Behavioral Healthcare, Developmental Disabilities and Hospitals Cranston Rhode Island USA