TY - JOUR T1 - 9,13-Di<em>cis</em>-Retinoic Acid as an Isomerization Product of 9-<em>cis</em>-Retinoic Acid   JF - Drug Metabolism and Disposition JO - Drug Metab Dispos SP - 1447 LP - 1447 VL - 25 IS - 12 AU - Jörn Oliver Sass AU - Georg Tzimas AU - Heinz Nau Y1 - 1997/12/01 UR - http://dmd.aspetjournals.org/content/25/12/1447.abstract N2 - ER -