RT Journal Article SR Electronic T1 The effect of primary metabolites of the xanthine-related nootropic drug ethimizol on its hepatic extraction ratio. JF Drug Metabolism and Disposition JO Drug Metab Dispos FD American Society for Pharmacology and Experimental Therapeutics SP 383 OP 385 VO 18 IS 3 A1 M Kukan A1 S Bezek A1 T Trnovec A1 L B Piotrovskiy YR 1990 UL http://dmd.aspetjournals.org/content/18/3/383.abstract AB