1. Update on barriers to pharmacotherapy for opioid use disorders;Sharma;Current Psychiatry Reports,2017
2. US Department of Justice, Drug Enforcement Administration. COVID-19 Information page; 2021. https://www.deadiversion.usdoj.gov/coronavirus.html.
3. COVID-19-related policy changes for methadone take-home dosing: A multistate survey of opioid treatment program leadership;Levander;Substance Abuse,2021
4. Substance Abuse and Mental Health Services Administration. Opioid Treatment Program (OTP) guidance.; 2020. https://www.samhsa.gov/sites/default/files/otp-guidance-20200316.pdf
5. Patient-centredness: A conceptual framework and review of the empirical literature;Mead;Social Science & Medicine,2000