1. Department of Surgery, Veterans Administration Greater Los Angeles Healthcare System, David Geffen School of Medicine University of California at Los Angeles Los Angeles California
2. Department of Anatomy, Physiology and Genetics Uniformed Services University of Health Sciences Bethesda Maryland
3. Pasarow Mass Spectrometry Laboratory, Jane and Terry Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine University of California at Los Angeles Los Angeles California
4. Department of Molecular, Cell and Developmental Biology University of California at Los Angeles Los Angeles California
5. Division of Gastroenterology, Hepatology and Parenteral Nutrition, Department of Medicine, Veterans Administration Greater Los Angeles Healthcare System, David Geffen School of Medicine University of California at Los Angeles Los Angeles California
6. Department of Head and Neck Surgery, David Geffen School of Medicine University of California at Los Angeles Los Angeles California
7. Department of Medicine Statistics Core, David Geffen School of Medicine University of California at Los Angeles Los Angeles California
8. Department of Pathology, David Geffen School of Medicine University of California at Los Angeles Los Angeles California
9. Aveta Biomics Inc Bedford Massachusetts
10. Jonsson Comprehensive Cancer Center University of California at Los Angeles Los Angeles California
11. Molecular Biology Institute University of California at Los Angeles Los Angeles California
12. Division of Hematology‐Oncology, Department of Medicine, VA Greater Los Angeles Healthcare System, David Geffen School of Medicine University of California at Los Angeles Los Angeles California