1. University Hospitals Cleveland Medical Center and Case Western Reserve University School of Medicine Division of Thoracic and Esophageal Surgery, Department of Surgery, , Cleveland, OH , USA
2. University of Arizona Section of Thoracic Surgery, Department of Surgery, , Tucson, AZ , USA
3. University Hospitals Cleveland Medical Center and Case Western Reserve University School of Medicine UH-RISES: Research in Surgical Outcomes and Effectiveness, Department of Surgery, , Cleveland, OH , USA