1. Division of Pulmonary, Allergy, and Critical Care, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
2. Division of Thoracic Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
3. Division of Cardiovascular Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
4. Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA