Hassan, Ahmed. “Is It Time to Consider Other Treatment Options for Opioid Use Disorder in Saudi Arabia? ”. Journal of King Abdulaziz University - Medical Sciences 27, no. 1 (June 30, 2020): 1-4. Accessed April 19, 2021. https://jkaumedsci.org.sa/index.php/jkaumedsci/article/view/756.