Lt. Col. (Dr.) Chad Hivnor uses a carbon dioxide fractional laser to help improve skin texture and flexibility on a wounded warrior's scarred hand Sept. 24, 2010, at Wilford Hall Medical Center, Lackland Air Force Base, Texas. A grant was recently approved for Dr. Hivnor's research into the use of the laser treatments. (U.S. Air Force photo/Staff Sgt. Robert Barnett)