Electronic Surveillance System for the Early Notification (ESSENCE) for Marijuana-Associated Visits to One Hospital Emergency Department — Denver, Colorado, 2016
Grace E Marx, MD, MPH1,2, Yushiuan Chen, MPH2 and Bernadette Albanese, MD, MPH2, (1)Centers for Disease Control and Prevention, Fort Collins, CO, (2)Tri-County Health Department, Greenwood Village, CO