New Horizons Guyana 2009 comes to a close
Capt. Johnny Foster uses a tympanometer to measure a Guyanese boy's eardrums Aug. 11, 2009, at the Georgetown Public Hospital in Georgetown, Guyana. Ear, nose and throat doctors deployed here will see more than 500 patients in eight days. Captain Foster is an audiologist from the 59th Medical Wing at Wilford Hall at Lackland Air Force Base, Texas. (U.S. Air Force photo/Airman 1st Class Perry Aston)