1. Esophageal and Lung Institute, Allegheny Health Network, Pittsburgh, PA, USA
2. Department of Gastroenterological Surgery, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
3. McGinnis Cardiovascular Institute, Allegheny Health Network, Pittsburgh, PA, USA
4. Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Hospital, Baltimore, MD, USA