RN Mary Sinden sets the dosage of methadone to be administered to one of more than 300 heroin addicts receiving treatment from ARTS Outpatient Clinic in Denver. [Getty Images]

RN Mary Sinden sets the dosage of methadone to be administered to one of more than 300 heroin addicts receiving treatment from ARTS Outpatient Clinic in Denver. (Photo By Brian Brainerd/The Denver Post via Getty Images)

Denver Post Brian Brainerd