Lt. Cmdr. Brad Serwer , Felipe Torres and Hospital Corpsman 1st Class Ben Stewart examine a patient's heart with an echocardiogr

110516-F-CF975-160
ROCAFUERTE, Ecuador (May 16, 2011) Lt. Cmdr. Brad Serwer, left, a cardiologist from Olney, Md., Felipe Torres, center, a medical student at Universdad Tecnologica Equinoccial and Hospital Corpsman 1st Class Ben Stewart, from Atlanta, Texas, examine a patient's heart with an echocardiogram during Continuing Promise 2011. Continuing Promise is a five-month humanitarian assistance mission to the Caribbean, Central and South America. (U.S. Air Force photo by Senior Airman Kasey Close/Released)

110516-F-CF975-160
 ROCAFUERTE, Ecuador (May 16, 2011) Lt. Cmdr. Brad Serwer, left, a cardiologist from Olney, Md., Felipe Torres, center, a medical student at Universdad Tecnologica Equinoccial and Hospital Corpsman 1st Class Ben Stewart, from Atlanta, Texas, examine a patient's heart with an echocardiogram during Continuing Promise 2011. Continuing Promise is a five-month humanitarian assistance mission to the Caribbean, Central and South America. (U.S. Air Force photo by Senior Airman Kasey Close/Released)