1. From the Department of Medicine, Brigham and Women’s Hospital (J.L.), the Departments of Surgery (N.R.), Medicine (R.V.S., J.N.T., J.S.), Radiology (A.M.C.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (J.L., R.V.S., J.N.T., J.S.), Surgery (N.R.), Radiology (A.M.C.), and Pathology (J.R.S.), Harvard Medical School — all in Boston.