RT Journal Article SR Electronic T1 OBSERVATIONS ON THE PHARMACOLOGY OF MITRAGYNINE JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 251 OP 271 VO 46 IS 3 A1 KHEM SINGH GREWAL YR 1932 UL http://jpet.aspetjournals.org/content/46/3/251.abstract AB