Etoposide pathway.

Department of Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, Tennessee, Department of Medicine, University of Chicago, Illinois, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, Departments of Genetics and Bioengineering, Stanford University, Stanford, California, USA Correspondence to Dr Teri E. Klein, PhD, Department of Genetics, Stanford University Medical Center, 300 Pasteur Drive, Lane L301, Mail Code 5120, Stanford, CA 94305-5120, USA Tel: + 1 650 725 0659; fax: + 1 650 725 3863; e-mail: [email protected]