1. 1. Turck L. On the laryngeal mirror and its mode of employment, with engravings on wood. Zeitsch Gesellschaft Aerzte Wien 1858; 26:401-9.
2. 2. Czermak JN, Ueber den Kehlkopfspiegel. Wiener Med Wochensch 1858; VIII: 196-8.
3. 3. Garcia M. Observations on the human voice. Proc R Soc Lond 1855; 7:397-410.
4. 4. Zeitels SM. Preface, in Atlas of phonomicrosurgery and other endolaryngeal procedures for benign and malignant disease. San Diego: Singular; 2001. P. xi-xii.
5. Glottal area waveform analysis of benign vocal fold lesions before and after surgery;Woo;Ann Otol Rhinol Laryngol,2000