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Cardiopulmonary Lab Apprentice, Senior Airman Jarek Switalski from the 115th Fighter Wing in Madison, WI, left, joins Assistant Chief Nurse Lt. Col. Lynda Peralta and Medical Technician Senior Airman Howard Chang from the 146th Airlift Wing in Port Hueneme, CA to perform cardiopulmonary resuscitation during an Emergency Medical Support (EMEDS) exercise at the Air National Guard's Combat Readiness Training Center in Alpena, MI, on Aug. 28, 2008. The week long training exercise tasked medical personnel from multiple Air National Guard units to work together to provide emergency medical relief to victims of a simulated earthquake. (US Air Force photo by Master Sgt. Paul Gorman) (RELEASED)