@inproceedings{qiu2008colon,
  title={Colon flattening with discrete Ricci flow},
  author={Qiu, Feng and Fan, Zhe and Yin, Xiaotian and Kaufman, Arie and Gu, Xianfeng},
  booktitle={MICCAI workshop},
  pages={97--102},
  year={2008},
  organization={Citeseer}
}