1. Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine (Z.H.T., J.E.O.)
2. Department of Epidemiology and Biostatistics (E.V.)
3. Department of Pathology (P.C.U.)
4. Department of Neurology (A.S.K.)
5. Department of Emergency Medicine (K.S., C.Y.)
6. San Francisco Fire Department, Emergency Medical Services Division, CA (C.Y.)
7. Department of Family Medicine, Oregon Health and Science University, Portland (B.C.)
8. School of Medicine (N.M.C.), University of California, San Francisco
9. Weill Cornell Medical College, New York (R.K.)
10. Office of the Chief Medical Examiner, City and County of San Francisco, CA (A.P.H., E.M.).