OUTLINE: This is a multicenter study. Patients receive fluorouracil IV continuously on days 1-5 and 43-47 and cisplatin IV over 1 hour on days 2, 23, and 44. Concurrent radiotherapy is administered 5 days a week for 6.5 weeks. Patients are followed every 3 months for 2 years, then every 6 months for 3 years.