Adolescent marijuana use from 2002 to 2008: higher in states with medical marijuana laws, cause still unclear
Melanie M. Wall, PhD
1,4, Ernest Poh, M.S
2, Magdalena Cerdá, DrPH
3, Katherine M Keyes, PhD
2,3, Sandro Galea, DrPH
3, and Deborah S. Hasin, PhD
2,3,41
Department of Biostatistics, Mailman School of Public Health, Columbia University, 722 W168th St, New York, NY, 10032-3727
2
New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY, 10032
3
Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W168th St, Room 527, New York, NY, 10032-3727
4