1. Global overview drug demand drug supply. World Drug Report. Accessed May 9, 2023. https://www.unodc.org/res/wdr2022/MS/WDR22_Booklet_2.pdf.
2. Co-occurring substance use disorder and physical comorbidities. The National Institute on Drug Abuse. Accessed October 18, 2023. https://nida.nih.gov/publications/research-reports/common-comorbidities-substance-use-disorders/part-2-co-occurring-substance-use-disorder-physical-comorbidities.
3. The connection between substance use disorders and mental illness. The National Institute on Drug Abuse. https://nida.nih.gov/publications/research-reports/common-comorbidities-substance-use-disorders/part-1-connection-between-substance-use-disorders-mental-illness.
4. The global burden of disease attributable to alcohol and drug use in 195 countries and territories, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016;Lancet Psychiatry.,2018
5. Principles of effective treatment. The National Institute on Drug Abuse. Accessed April 12, 2023. https://nida.nih.gov/publications/principles-drug-addiction-treatment-research-based-guide-third-edition/principles-effective-treatment.