Medical marijuana laws and marijuana use in the USA: Any lessons.

ABSTRACT

Hasin DS, Wall M, Keyes KM, Cerdá M, Schulenberg J, O’Malley PM, Galea S, Pacula R, Feng T. (Departments of Epidemiology, Psychiatry and Biostatistics, Mailman School of Public Health, Columbia University, New York; New York State Psychiatric Institute, New York, NY; Institute for Social Research, University of Michigan, Ann Arbor; Institute for Social Research, University of Michigan, Ann Arbor, MI; RAND Corporation, Santa Monica, California; National Bureau of Economic Research, Cambridge, Massachusetts; Research Foundation of Mental Hygiene, New York, NY, USA.) Medical marijuana laws and adolescent marijuana use in the USA from 1991 to 2014 Results from annual, repeated cross-sectional surveys. Lancet Psychiatry 2015;2601–8.