1 Division of Thoracic Surgery, Department of Surgery, Yale University School of Medicine and Department of Biostatistics, School of Epidemiology and Public Health, Yale University, New Haven, Connecticut.
2 Thoracic Service, Memorial Sloan-Kettering Cancer Center, New York City, New York.
3 HH Gregg Professor of Oncology, Division of Medical Oncology, Department of Internal Medicine, Indiana Universitychool of Medicine, Indianapolis, Indiana.