Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe botanical origin of kratom ( Mitragyna speciosa; Rubiaceae) available as abused drugs in the Japanese markets.AuthorsMaruyama, Takuro; Kawamura, Maiko; Kikura-Hanajiri, Ruri; Takayama, Hiromitsu; Goda, YukihiroPublicationJournal of Natural Medicines, 2009, Vol 63, Issue 3, p340ISSN1340-3443Publication typeArticleDOI10.1007/s11418-009-0325-9