EUS: past, present, and the future of endoscopy.

@article{Sivak2002EUSPP,
  title={EUS: past, present, and the future of endoscopy.},
  author={Michael V. Sivak},
  journal={Gastrointestinal endoscopy},
  year={2002},
  volume={55 3},
  pages={446-8}
}