@article{kawaida_1989, 
  title={Functional phonosurgical operation by using a therapeutic flexible laryngofiberscope}, 
  volume={32}, 
  DOI={10.11453/orltokyo1958.32.295}, 
  number={3}, 
  publisher={Society of Oto-rhino-laryngology Tokyo}, 
  author={Kawaida, Masahiro}, 
  year={1989}
  }