Esophagogastrectomy for carcinoma of the esophagus and cardia: a comparison of findings and results after standard resection in three consecutive eight-year intervals with improved staging criteria. - Ellis,F.H.; Heatley,G.J.; Krasna,M.J.; Williamson,W.A.; Balogh,K. (J Thorac Cardiovasc Surg, 1997)