Boston, Colo. officials talk marijuana worries

Colorado has experienced a significant jump in patients seeking emergency medical treatment for complications related to suspected marijuana use since 2014, when the state legalized the drug for commercial sales, according to a presentation by Denver health officials. Still, marijuana-related emergency department visits represent less than 1 percent of all ER visits, said the officials, who shared their experiences and lessons learned during a phone call with the Boston Public Health Commission.