(IMAGE) Cedars-Sinai Medical Center Caption First responders with the Ventura County EMS Agency provide Cedars-Sinai investigators with community-based data for the Prediction of Sudden Death in Multi-Ethnic Communities (PRESTO) Study, an effort led by the Smidt Heart Institute to better understand sudden cardiac arrest. Photo courtesy of Ventura County EMS Agency. Credit Photo courtesy of Ventura County EMS Agency. Usage Restrictions Provide photo credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.