Cannabis Use Patterns and Motives: A Comparison of Younger, Middle-Aged, and Older Medical Cannabis Dispensary Patients Nancy A. Haug, Claudia B. Padula, James E. Sottile, Ryan Vandrey, Adrienne J. Heinz, and Marcel O. Bonn-Miller Addictive Behaviors, 2017, 72, 14-20. Doi : 10.1016/j.addbeh.2017.03.006   Abstract Introduction : Medical cannabis is increasingly being used for a variety of health conditions as more states implement legislation permitting medical use of cannabis. Little is known about medical cannabis use patterns and motives among adults across the lifespan. Methods : The present study examined data collected at a medical cannabis dispensary in San Francisco, California. Participants included 217 medical cannabis patients who [...]