The purpose of this study is to compare the effects, good and/or bad, of three different ways to give radiation therapy. Two of the ways are experimental, while one of them is standard. The two experimental ways of giving the radiation therapy are (1) once a day with a high dose of radiation for 7 weeks; or (2) once a day for 16 days of treatment (about 3 weeks), followed by twice a day for the remaining 9 days of treatment (about 2 weeks), for a total of 5 weeks. The standard way of giving the radiation therapy is to give it twice a day for 3 weeks. Everyone will get the chemotherapy with cisplatin and etoposide, which has been established through clinical trials to be standard drugs (chemotherapy) for this type of cancer.
About 670 people will take part in this study, approximately 8 people will take part at Washington University.
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