1. From the Department of Pathology (Drs Raparia and Villa); the Division of Thoracic Surgery (Dr DeCamp); the Division of Medical Oncology (Dr Patel); the Department of Radiation Oncology, Feinberg School of Medicine, Chicago (Dr Mehta); and the Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois (Drs Raparia, DeCamp, Patel, and Mehta).