You will be taken off study early if the disease gets worse or intolerable side effects occur. After finishing the treatment, follow up is recommended 6 weeks after completion of radiotherapy, required every 3 months (+/-1 month) for two years, then every (+/-1 month) 6 months for three years, and then once a year for 2 years. You will have imaging tests (chest CT or PET scan), lung function test and routine blood tests (about 2 teaspoons) at the follow-up visits. You are allowed to have further chemotherapy or other treatment while you are still in the follow-up on this study. You should discuss chemotherapy with your medical oncologist.