1. Japan Esophageal Society. Japanese Classification of Esophageal Cancer. 10th ed. Tokyo: Kanehara; 2008.
2. Japan Esophageal Society. Comprehensive Registry of Esophageal Cancer in Japan, 2003. Chiba: Japan Esophageal Society; 2010.
3. Kuwano H, Nishimura Y, Ohtsu A, Kato H, Kitagawa Y, Tamai S, Toh Y, Matsubara H. Guidelines for diagnosis and treatment of carcinoma of the esophagus. Esophagus. 2008;5:61–73.
4. Japanese Society for Esophageal Diseases. Guidelines for the Clinical and Pathologic Studies on Carcinoma of the Esophagus (in Japanese). 1st ed. Tokyo: Japanese Society for Esophageal Diseases; 1969.
5. Japanese Society for Esophageal Diseases. Report of Nationwide Esophageal Cancer Registry in Japan, 1976 (in Japanese). 1st ed. Tokyo: National Cancer Center; 1979.