Cheng, Keng Peng Hemangiopericytoma 11 years later: delayed recurrence of a rare soft tissue sarcoma. [electronic resource] - Journal of thoracic disease Sep 2017 - E752-E756 p. digital Publication Type: Case Reports; Journal Article ISSN: 2072-1439 Standard No.: 10.21037/jtd.2017.08.74 doi