Your medical marijuana questions answered

Dr. Sanjay Gupta discusses his new documentary, Weed 3: the Marijuana Revolution. Dr. Gruber's research is cited:

"With medical marijuana so misunderstood, there naturally is a fear of potential side effects. There are legitimate, long-term concerns with the developing brain, Gupta said, and suggested that readers seek out the research of Dr. Staci Gruber, who has conducted numerous studies on marijuana use and brain function."