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Wierzchowska M, Burduk PK.Wierzchowska M, et al.Otolaryngol Pol. 2011 May-Jun;65(3):184-7. doi: 10.1016/S0030-6657(11)70672-2.Otolaryngol Pol. 2011.PMID: 21916217Polish.
Wierzchowska M, Bodnar M, Burduk PK, Kaźmierczak W, Marszałek A.Wierzchowska M, et al.Wideochir Inne Tech Maloinwazyjne. 2015 Jul;10(2):332-6. doi: 10.5114/wiitm.2014.47370. Epub 2014 Dec 4.Wideochir Inne Tech Maloinwazyjne. 2015.PMID: 26240639Free PMC article.