title: Monitoring Marijuana Use in the United States: Challenges in an Evolving Environment.
authors: Substance Abuse and Mental Health Services Administration, Rockville, Maryland.
authors: Alejandro
authors: A
authors: Azofeifa
authors: Substance Abuse and Mental Health Services Administration, Rockville, Maryland.
authors: Margaret E
authors: ME
authors: Mattson
authors: Centers for Disease Control and Prevention, Atlanta, Georgia.
authors: Althea
authors: A
authors: Grant
mesh_terms: D002188:Cannabis; D004777:Environment; D006801:Humans; D008385:Marijuana Smoking; D064086:Medical Marijuana; D014481:United States
chemical_list: D064086:Medical Marijuana