Ilmie, Mohd U Subchronic toxicity study of standardized methanolic extract of Mitragyna speciosa Korth in Sprague-Dawley Rats. [electronic resource] - Frontiers in neuroscience 2015 - 189 p. digital Publication Type: Journal Article ISSN: 1662-4548 Standard No.: 10.3389/fnins.2015.00189 doi