Patients will be seen for interim medical history, physical exam and laboratory studies prior to each cycle. To monitor for recurrence of tumor, patients will undergo thoracic CT scans at 3-4 weeks, 6-8 weeks, at 3 months, at 6 months, at 9 months, at 12 months, then every 6 months up to 2 years, and then every year up to 5 years after starting treatment. An electrocardiogram (ECG) will be taken at 3 months, and a bone scan will be performed at 12 months.