Tuong Van Phan, Si Dung Chu, and Dung Thi Nguyen. “Factors Influencing Methadone Treatment Adherence of Drug Abusers: A Study in a Typical Medical Center in Vietnam”. International Journal of Medical Toxicology and Legal Medicine 27, no. 4s (November 24, 2024): 1–9. Accessed April 11, 2025. http://ijmtlm.org/index.php/journal/article/view/793.