4Car MM, Nguyen A, Pole C, et al. Correlation of findings on direct laryngoscopy and bronchoscopy with presence of extraesophagesl reflux disease[J]. Laryngoscope, 2000, 110(9) : 1650.
5Fuehs M. Diagnostics and therapy of dysphonia suitable for the ages and developmental stages of children and adolescents [J]. Laryngorhinootologie, 2008, 87(2) : 86 - 91.
6Sirikci A, Karatas E, Durucu C, et al. Noninvasive assessment of benign lesions of vocal folds by means of ultrasonography [ J ]. Ann Otol Rhinol Laryngol,2007,116(8) :827-831.
7黄选兆,汗吉宝.实用耳鼻咽喉科学[M].1版.北京:人民卫生出版社,2002:447.
8Patel D,Chopra S,Berman MD.Serious systemic toxicity resultingfrom use of tetracaine for pharyngeal anesthesia in upper endoscopieprocedures[J].Dig Dis Sei,1989,34(2):882.