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Modified Masaoka stage and size are independent prognostic predictors in thymoma and modified Masaoka stage is superior to histopathologic classifications. J Thorac Oncol 2015; 10: 691-700.","DOI":"10.1097\/JTO.0000000000000482"},{"key":"14","doi-asserted-by":"crossref","unstructured":"14) Tomiyama N, Johkoh T, Mihara N, et al. Using the World Health Organization classification of thymic epithelial neoplasms to describe CT findings. AJR Am J Roentgenol 2002; 179: 881-6.","DOI":"10.2214\/ajr.179.4.1790881"},{"key":"15","doi-asserted-by":"crossref","unstructured":"15) Jung KJ, Lee KS, Han J, et al. Malignant thymic epithelial tumors: CT-pathologic correlation. AJR Am J Roentgenol 2001; 176: 433-9.","DOI":"10.2214\/ajr.176.2.1760433"},{"key":"16","doi-asserted-by":"crossref","unstructured":"16) Hara H, Iwabuchi K, Shinada J, et al. Pulmonary adenocarcinoma with heterotopic bone formation. 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