Takanami, I Noninvasive large thymoma with a natural history of twenty-one years. [electronic resource] - The Journal of thoracic and cardiovascular surgery Dec 1999 - 1134-5 p. digital Publication Type: Case Reports; Journal Article ISSN: 0022-5223 Standard No.: 10.1016/S0022-5223(99)70120-0 doi Subjects--Topical Terms: Follow-Up StudiesHumansMaleMiddle AgedNeoplasm StagingThoracotomyThymectomyThymoma--diagnosisThymus Neoplasms--diagnosisTomography, X-Ray Computed