Ulcerative duodenitis with ulcerative colitis: is it Crohn's disease or really ulcerative colitis?

@article{Korelitz2001UlcerativeDW,
  title={Ulcerative duodenitis with ulcerative colitis: is it Crohn's disease or really ulcerative colitis?},
  author={Burton I. Korelitz and R G S C Rajapakse},
  journal={Journal of clinical gastroenterology},
  year={2001},
  volume={32 2},
  pages={97}
}