The fiberoptic approach to dilation of stenotic lesions of the esophagus.

@article{Olsen1977TheFA,
  title={The fiberoptic approach to dilation of stenotic lesions of the esophagus.},
  author={Herbert Olsen and William W. Lawrence and G Bottarini and P Pises},
  journal={Gastrointestinal endoscopy},
  year={1977},
  volume={23 4},
  pages={201-2}
}