[1] Genentech Inc, Dept Drug Metab & Pharmacokinet, 1 DNA Way, San Francisco, CA 94080 USA
[2] Wageningen Univ, Div Toxicol, Wageningen, Netherlands
[3] Celgene Corp, Drug Metab & Pharmacokinet, San Diego, CA USA
[4] Univ Arkansas Med Sci, Dept Biochem & Mol Biol, Little Rock, AR 72205 USA