LANGLEY AIR FORCE BASE, Va. -- Airman 1st Class Krystal Woolverton, 633d Surgical Operations Squadron surgical technologists, prepares the surgical field prior to a surgery at the Langley hospital Oct. 5. The 633d Medical Group employs 22 surgical technologists, boasting a combined experience of more than 50 years. (U.S. Air Force photo/Airman 1st Class Jason J. Brown) (RELEASED)