1. Mitragyna speciosa, a psychoactive tree from Southeast Asia with opioid activity;Adkins;Current Topics in Medicinal Chemistry,2011
2. American Kratom Association (2018a). Retrieved from http://www.americankratom.org.
3. American Kratom Association announces good manufacturing practice (GMP) standars for vendors;American Kratom Association,2018
4. Kratom users say Ban will lead to more drug abuse;Anson,2016
5. Notes from the Field: Kratom (Mitragyna speciosa) exposures reported to poison centers - United States, 2010-2015;Anwar;MMWR Morbidity and Mortality Weekly Report,2016