6Preciado J,Perez C,Calzada M,et al. Prevalence and incidence studies of voice disorders among teaching staff of La Rioja, Spain. Clinical study: questionnaire, function vocal examination, acoustic analysis and videolaryngostroboscopy[J]. Acta Otorrinolaringol Esp,2005,56 (5):202-210.
7Gallivarl GJ,Eitnler CM. Vocal fold polyp in a professional brass/wind instrumentalist and singer[J]. J Voice,2006,20( 1 ) : 157-164.
8Hochman II,Zeitels SM. Phonornicrosurgical management of vocal fold polyps: the subepithelial microflap resection technique[J]. J Voice, 2000,14(1 ): 112-118.
