1. Department of Surgery, Oregon Health & Science University , Portland , OR 97239 , USA
2. Brenden-Colson Center for Pancreatic Care, Oregon Health & Science University , Portland , OR 97201 , USA
3. Knight Cancer Institute, Oregon Health & Science University , Portland , OR 97201 , USA
4. The Jefferson Pancreas, Biliary and Related Cancer Center, Department of Surgery, Thomas Jefferson University , Philadelphia , PA 19107 , USA
5. Department of Diagnostic Radiology, Oregon Health & Science University , Portland , OR 97239 , USA
6. Advanced Imaging Research Center, Oregon Health & Science University , Portland , OR 97239 , USA
7. Department of Pathology, Oregon Health & Science University , Portland , OR 97239 , USA
8. Department of Molecular and Medical Genetics, Oregon Health & Science University , Portland , OR 97239 , USA
9. Cancer Early Detection Advanced Research Center, Oregon Health & Science University , Portland , OR 97201 , USA