Mark G. Kris, MD, is the William and Joy Ruane Chair in Thoracic Oncology and Chief of the Thoracic Oncology Service at Memorial Sloan Kettering Cancer Center, where he specializes in the treatment of patients with lung cancer, thymoma, and mediastinal tumors. His research focuses on the identification of genetic targets to develop novel therapeutic strategies for patients with lung cancer. Dr. Kris has served as principal investigator or co-investigator of numerous clinical trials.