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Air Force Reserve Senior Airman Sidney Day, a medical service technician with the 910th Medical Squadron at Youngstown Air Reserve Station, Ohio, performs a blood pressure check on a unit reservist as part of his annual physical during a Unit Training Assembly in March. Reservists from the 910th Medical Squadron perform about 150 flight, annual and initial physicals each month. (U.S. Air Force photo by Air Force Reserve Senior Airman Eric Armstrong.)