Lukanapichonchat, Lumsum, Viroj Verachai, Sumnao Nilaban, Rossukhon Thanateerabunjong, and Kanchana Ratanaphan. “Co-Abuse Substances in Kratom Dependent Patients”. Journal of The Department of Medical Services 46, no. 3 (November 30, 2021): 96–104. Accessed February 5, 2023. https://he02.tci-thaijo.org/index.php/JDMS/article/view/255170.