Baitubayеv DG, and MD Baitubayeva. “Tolerance to Extreme Doses of Psychoactive Substances”. Journal of Addiction Therapy and Research 5, no. 1 (December 31, 2021): 027–031. Accessed December 8, 2025. https://www.addictiontherjournal.com/index.php/jatr/article/view/jatr-aid1019.