Batsakis, J G Choanal and angiomatous polyps of the sinonasal tract. [electronic resource] - The Annals of otology, rhinology, and laryngology Jul 1992 - 623-5 p. digital Publication Type: Journal Article ISSN: 0003-4894 Standard No.: 10.1177/000348949210100716 doi Subjects--Topical Terms: Hemangioma--pathologyHumansNasal Polyps--pathologyParanasal Sinus Neoplasms--pathologyPolyps--pathology