Determination of Psychoactive Mitragynine Drug in Suspected Kratom Species Collected from Various Geographical Areas in the Philippines: A Pilot Study on Existing Local Plant-based New Psychoactive Su. AJFSFM [Internet]. 2019 Dec. 31 [cited 2026 Nov. 6];1(10):1358-66. Available from: https://journals.nauss.edu.sa/AJFSFM/article/view/1074