@misc{indiciaeb7754a1cdcc2,
  title = {[Continent proctocolectomy--difficulties caused by previous operation].},
  author = {H Barth and H D Saeger and M Trede},
  year = {1987},
  doi = {10.1007/bf01297857},
  url = {https://pubmed.ncbi.nlm.nih.gov/2828786/},
  note = {Source identifier: 2828786}
}