ROYAL AIR FORCE MILDENHALL, England — Airman 1st Class Stephanie Ambler checks the pulse of Capt. Derek Ferland to verify the accuracy on the automatic blood pressure machine during a blood drive here April 13. Airman Ambler is with the 48th Medical Support Squadron and Captain Ferland is with the 100th Civil Engineer Squadron. (U.S. Air Force photo by Staff Sgt. Jeanette Copeland)