Cholangioscopy and pancreatoscopy (with videos).

@article{Nguyen2009CholangioscopyAP,
  title={Cholangioscopy and pancreatoscopy (with videos).},
  author={Nam Quoc Nguyen and Kenneth Frank Binmoeller and Janak N. Shah},
  journal={Gastrointestinal endoscopy},
  year={2009},
  volume={70 6},
  pages={1200-10}
}