You will be taken off study early if the disease gets worse or intolerable side effects occur. After finishing the treatment, 6 week follow up is recommended after completion of radiotherapy, then required every 3 months (+1 month) for 2 years, then every 6 months (+1 month) for 3 years, and then once a year for 2 years. You will have imaging tests (chest CT or positron emission computed tomography (PET) scan) and routine blood tests (about 2 teaspoons) at the follow-up visits.