Prescription opioid use disorder and heroin use among 12-34 year-olds in the United States from 2002 to 2014.

a Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th St., New York, NY 10032, USA b Rutgers University, Institute for Health, 112 Paterson St., New Brunswick, NJ 08901, USA c New York State Psychiatric Institute and the Department of Psychiatry, Columbia University, Harkness Pavilion, 180 Ft. Washington Ave., New York, NY 10032, USA d Department of Emergency Medicine, University of California at Davis, 4150 V St., Patient Support Services Bldg., Suite 2100, Sacramento, CA 95817, USA e Department of Family and Community Health, University of Maryland School of Nursing, 655 West Lombard St., Baltimore, MD 21201, USA f Department of Epidemiology and Population Health, American University of Beirut, Van Dyck Hall, PO Box 11-0236, Riad El-Solh, Beirut 1107 2020, Lebanon