1Radiology, Harvard Medical School / BIDMC, Boston, MA, United States, 2Computer Science, State University of New York at Binghamton, Binghamton, NY, United States, 3Vascular Surgery, Stanford University, Stanford, CA, United States, 4Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States, 5Radiology, Stanford University, Stanford, CA, United States, 6Radiology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States, 7Psychology, Stanford University, Stanford, CA, United States, 8Psychology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States, 9Vascular Surgery, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States