Comment on

• Combined chemotherapy and radiotherapy compared with radiotherapy alone in patients with cancer of the esophagus.

  Herskovic A, Martz K, al-Sarraf M, Leichman L, Brindle J, Vaitkevicius V, Cooper J, Byhardt R, Davis L, Emami B. Herskovic A, et al. N Engl J Med. 1992 Jun 11;326(24):1593-8. doi: 10.1056/NEJM199206113262403. N Engl J Med. 1992. PMID: 1584260 Clinical Trial.