Learn CPR and get training on an automated external defibrillator, or AED.

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Few public agencies, including 911 dispatch centers, maintain a database of AED locations or systematically check to make sure available devices are in working order.

WSJ: This Device Saves Lives, But Can Be Hard to Find

Epileptics report a range of side-effects, some of them severe, when they are switched from a branded to a generic anti-epileptic drug (AED) or switched from one generic to another.

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In about 10% of cases, either a member of the public or a policeman applies an AED before the EMTs arrive, he says.

WSJ: This Device Saves Lives, But Can Be Hard to Find