1 Department of General Surgery, Georgetown University School of Medicine, Medstar Washington Hospital Center, Washington, DC.
2 Division of Thoracic Surgery, Georgetown University School of Medicine, Medstar Washington Hospital Center, Washington, DC.
3 Department of General Surgery, Georgetown University School of Medicine, Medstar Washington Hospital Center, Washington, DC; Division of Thoracic Surgery, Georgetown University School of Medicine, Medstar Washington Hospital Center, Washington, DC.
4 Department of General Surgery, Georgetown University School of Medicine, Medstar Washington Hospital Center, Washington, DC; Division of Thoracic Surgery, Georgetown University School of Medicine, Medstar Washington Hospital Center, Washington, DC. Electronic address: puja.g.khaitan@medstar.net.