Dr. David Bearman discusses medical marijuana history and medical indications. Especially for pain relief from conditions like convective tissue disorders. As well as medical marijuana's impacts on medical usage of opioids for pain control. Full documentary: http://marijuanamovie.org/ Dr. David Bearman Expert Witness Former Director of Haight Ashbury Drug Treatment Program Founder of Isla Vista Medical Clinic Member of Governor Reagan's Inter-Agency Task Force on Drug Abuse