Lung Cancer Facts : About Radiation Therapy for Lung Cancer Radiation therapy for lung cancer is extremely crucial, as the majority of patients cannot have the cancer removed through surgery. Find out how radiation therapy works with helpful information from a practicing oncologist in this free video on cancer. Expert: Dr. Kenneth Fink Contact: Bio: Dr. Kenneth Fink has been a medical doctor in the field of internal medicine specializing in hematology and oncology for 23 years. Filmmaker: Reel Media LLC