1. 1Department of Surgery, University of California Los Angeles, Los Angeles, California.
2. 2David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
3. 3Department of General Surgery/Pancreatic and Thyroid Surgery, Shengjing Hospital of China Medical University, Shenyang, P.R. China.
4. 4Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles, California.
5. 5Ahmanson Translational Imaging Division, UCLA, Los Angeles, California.
6. 6Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California.