1. . Histological Typing of Gastric and Esophageal Tumors. International Classification of Tumors, no. 18. Geneva: WHO, 1977; 37.
2. , , . Histological criteria for diagnosis of gastroscopic biopsy specimens (group classification). In: Japanese Committee of Gastric Cancer Research. Criteria for Management of Gastric Cancers, vol. 1. Tokyo: Kanahara Co., 1970; 73–86 (Jpn).