1. Department of Medicine, John H. Stroger Jr Hospital of Cook County, Chicago, IL, USA
2. Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea
3. Division of Cardiology, Ascension Borgess Hospital/Michigan State University, Kalamazoo, MI, USA
4. Division of Cardiology, Rush University Medical Center, Chicago, IL, USA
5. Division of Cardiothoracic Surgery, Cook County Health, Chicago, IL, USA
6. Division of Cardiothoracic Surgery, Rush Medical College, Chicago, IL, USA
7. Division of Cardiology, Cook County Health, Chicago, IL, USA
8. Division of Cardiology, Rush Medical College, Chicago, IL, USA