Dr. Denton Cooley assists Dr. Alfred Blalock (right) in an operation to correct a congenital heart defect in a young child, ca. 1944. Dr. Blalock pioneered the famous "blue baby" operation. (© Texas Heart Institute) Return to Previous Page Back to: Denton Cooley Profile Denton Cooley Biography Denton Cooley Interview Denton Cooley Photo Gallery