1. Division of Chemical Therapeutics, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, 1650 Orleans Street, CRB-I, 162 C, Baltimore, Maryland 21231, Pathology Department, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, Netherlands, Gastrointestinal Cancer Program, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, 1650 Orleans Street, CRB-I, 162 A, Baltimore, Maryland 21231, Toxicology and Pharmacology Branch, Developmental Therapeutics Program, Division...