1 Department of General Surgery, Southern California Permanente Medical Group, Department of Clinical Sciences, Kaiser Permanente School of Medicine, Los Angeles, CA, USA. ahmed.n.dehal@kp.org.
2 Division of Surgical Oncology, Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, CA, USA.
3 Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA.
4 Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
5 Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.