Neil T. Smith, “A review of the published literature into cannabis withdrawal symptoms in human users,” Addiction 97, issue 6 (June 2002): 621-632.
We hear regularly from prohibitionists that marijuana is addictive, but some experts consider the evidence unconvincing. In this article, a British substance abuse researcher reviews the evidence for marijuana withdrawal symptoms, considered the hallmark of addiction, and finds the evidence less than persuasive.
Free abstract and full text for purchase is available at http://www.blackwell-synergy.com/doi/abs/10.1046/j.1360-0443.2002.00026.x