Drug Use, Treatment, and Hopes for the Future: A Qualitative Study of Patients on Methadone Who Use Cocaine in the Age of Fentanyl.

French, R., Sharma, A., Fletcher, J., Gryczynski, J., Schacter, A. and Alexander, K. (in press). Drug Use, Treatment, and Hopes for the Future: A Qualitative Study of Patients on Methadone Who Use Cocaine in the Age of Fentanyl. Substance use and Addiction Journal,