1. Pancreatic Cancer Section, Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, MD 20892 , USA
2. Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, MD, 20892 , USA
3. Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen , Göttingen , Germany
4. Division of Surgical Oncology, University of Maryland School of Medicine , Baltimore, MD , USA
5. Howard University College of Medicine , Washington, DC , USA
6. Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center , Houston, TX , USA
7. Dan L. Duncan Comprehensive Cancer Center Division of Biostatistics, Baylor College of Medicine , Houston, TX , USA
8. Department of Genitourinary Medical Oncology, University of Texas MD Anderson Cancer Center , Houston, TX , USA
9. Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Advanced Technology Core, Alkek Center for Molecular Discovery, Baylor College of Medicine , Houston, TX , USA