Donald Greydanus, MD joined us for Lansing's Pediatric Grand Rounds. Dr. Greydanus is a professor and founding chair of the Department of Pediatric & Adolescent Medicine at Western Michigan University's Homer Stryker M.D. School of Medicine. The topic of Dr. Greydanus' presentation is "Cannabis Smoking: Known Adverse Effects with implications for Health Regulatory Regulation". You may view Dr. Greydanus' presentation below: