@misc{indiciaeb3a0fc90cba0,
  title = {The double contrast method in ulcerative colitis.},
  author = {S WELIN and F BRAHME},
  year = {1961},
  doi = {10.3109/00016926109175119},
  url = {https://pubmed.ncbi.nlm.nih.gov/13784201/},
  note = {Source identifier: 13784201}
}