Chemoradiotherapy followed by surgery compared with surgery alone in squamous-cell cancer of the esophagus. - Bosset,J.F.; Gignoux,M.; Triboulet,J.P.; Tiret,E.; Mantion,G.; Elias,D.; Lozach,P.; Ollier,J.C.; Pavy,J.J.; Mercier,M.; Sahmoud,T. (N Engl J Med, 1997)