Ferrari, Daris An unusual case of tracheo-pleural fistula and cardiac metastases in oropharyngeal carcinoma: a case report and review of the literature. [electronic resource] - Cancers of the head & neck 2016 - 16 p. digital Publication Type: Case Reports; Journal Article ISSN: 2059-7347 Standard No.: 10.1186/s41199-016-0018-5 doi