RT Journal Article SR Electronic T1 Measurement of psychoactive drugs in the human brain in vivo by MR spectroscopy. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1038 OP 1042 VO 14 IS 5 A1 R A Komoroski YR 1993 UL http://www.ajnr.org/content/14/5/1038.abstract AB