Luiz Alberto Zago Filho1; Ana Tereza Ramos Moreira2; Osvaldo Malafaia1; Jorge Eduardo Fouto Matias1
DOI: 10.5935/0004-2749.20140079
1 Department of Surgery, Federal University of Paraná Curitiba, PR, Brazil.
2 Department of Otolaryngology-Ophthalmology, Federal University of Paraná, Curitiba, PR, Brazil.