A Johns Hopkins Bloomberg School of Public Health analysis of registered medical marijuana users found that a hodgepodge of law and policy changes since 2001 had varying effects on the number of people consuming what in many states remains an otherwise illegal drug for its purported health benefits.
Legal, Policy Changes Can Lead to Shifts in Use of Medical Marijuana
Original post: Newswise - Drug and Drug Abuse Legal, Policy Changes Can Lead to Shifts in Use of Medical Marijuana