1. Harrington Heart & Vascular Institute, Cardiovascular Medicine Department, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, Ohio
2. Department of Anatomic Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, Ohio
3. Harrington Heart & Vascular Institute, Cardiovascular Medicine Department, University Hospitals Portage Medical Center, Case Western Reserve University School of Medicine, Ravenna, Ohio