1. Department of Surgery, Stanford–Surgery Policy Improvement Research and Education Center (S-SPIRE), Stanford University School of Medicine, Stanford, California.
2. Divisions of General Surgery, Stanford University School of Medicine, Stanford, California.
3. Division of General Surgery, Palo Alto Veterans Affairs Health Care System, Palo Alto, California.
4. Divisions of Endocrinology, Gerontology and Metabolism, Stanford University School of Medicine, Stanford, California.
5. Divisions of Nuclear Medicine and Molecular Imaging, Stanford University School of Medicine, Stanford, California.