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Combined chemoradiotherapy vs. radiotherapy alone for early stage squamous cell carcinoma of the esophagus: a study of the Eastern Cooperative Oncology Group.
Smith TJ, Ryan LM, Douglass HO Jr, Haller DG, Dayal Y, Kirkwood J, Tormey DC, Schutt AJ, Hinson J, Sischy B. Smith TJ, et al. Among authors: ryan lm. Int J Radiat Oncol Biol Phys. 1998 Sep 1;42(2):269-76. doi: 10.1016/s0360-3016(98)00232-6. Int J Radiat Oncol Biol Phys. 1998. PMID: 9788404 Free article. Clinical Trial.
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