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49. Osteoblastoma of the ethmoid sinus: the fourth reported case. Som PM, Bellot P, Blitzer A, Som ML, Geller SA. Arch Otolaryngol; 1979 Oct; 105(10):623-5. PubMed ID: 485933 [No Abstract] [Full Text] [Related]
50. A case of extranasopharyngeal angiofibroma of the ethmoid sinus: a distinct clinical entity at an unusual site. Lerra S, Nazir T, Khan N, Qadri MS, Dar NH. Ear Nose Throat J; 2012 Feb; 91(2):E15-7. PubMed ID: 22359139 [Abstract] [Full Text] [Related]
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