4/2/2010 - DAVIS-MONTHAN AIR FORCE BASE, Ariz. (AFNS) -- For some military members, the call to duty is only surpassed by the call to help others. For Air Force reservist and 920th Rescue Wing member Tech. Sgt. Corey Hellmann, it's his motivation and mission in life. When he isn't providing respiratory therapy at his civilian job in a level-one trauma center in Tampa, Fla., Sergeant Hellmann, in his military job, can be found administering critical care to wounded warfighters being evacuated from the war zone. As a member of the 920th Aeromedical Staging Squadron at Patrick Air Force Base, Fla.,...