1. 1Department of Pharmacology and Toxicology and Massey Comprehensive Cancer Center, Virginia Commonwealth University, Richmond, Virginia.
2. 5Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida.
3. 2Department of Biochemistry, Department of Medicine, Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, Bronx, New York.
4. 3Department of Chemistry, Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois.
5. 4Department of Surgery, Virginia Commonwealth University, Richmond, Virginia.
6. 6Department of Gastrointestinal Oncology, Moffitt Cancer Center, Tampa, Florida.
7. 7Department of Surgery, University of Florida, Gainesville, Florida.