http://www.heart.org/HEARTORG/CPRAndECC/WorkplaceTraining/AEDResources/AED-Programs-Q-A_UCM_323111_Article.jsp
Automated external defibrillators (AEDs) are placed in public and/or private places where large numbers of people gather or where people who are at high risk for heart attacks live. Information on AEDs, including training, purchasing, and apprporiate use of the device is provided.