1. University of Texas, MD Anderson Cancer Center; Houston Texas
2. Detroit Medical Center, Cardiovascular Institute; Detroit Michigan
3. Division of Cardiovascular Diseases; Mayo Clinic; Rochester Minnesota
4. Division of Cardiology; University of California at Los Angeles; Los Angeles California
5. School of Medicine; Arkansas Heart Hospital; Little Rock Arkansas
6. Koc University; Istanbul Turkey
7. University of Texas Health Science Center; Houston Texas
8. University of Arkansas for Medical Sciences; Little Rock Arkansas
9. Hippokration General Hospital; Athens Medical School; Athens Greece
10. University of Alabama at Birmingham; Birmingham Alabama
11. Citizens Memorial Hospital; Bolivar Missouri
12. University of Missouri; Columbia Missouri