12 -

12 - Roussel A, Bleiberg H, Dalesio O, Jacob JH, Haegele P, Jung GM, et al. Palliative therapy of inoperable oesophageal carcinoma with radiotherapy and methotrexate: final results of a controlled clinical trial. Int J Radiat Oncol Biol Phys 1989;16:67-72.