1. Department of Cardiovascular and Thoracic Surgery, Rhode Island Hospital Warren Alpert Medical School of Brown University Providence Rhode Island USA
2. Division of Cardiac Surgery NorthShore University HealthSystem Chicago Illinois USA
3. Department of Cardiovascular Sciences, Brody School of Medicine East Carolina University Greenville North Carolina USA
4. Division of Cardiology, Rhode Island Hospital Warren Alpert Medical School of Brown University Providence Rhode Island USA