@misc{indiciae8a25daa4f4ab,
  title = {Which peptic ulcer patients bleed?},
  author = {K Matthewson and S Pugh and T C Northfield},
  year = {1988},
  doi = {10.1136/gut.29.1.70},
  url = {https://pubmed.ncbi.nlm.nih.gov/3343016/},
  note = {Source identifier: 3343016}
}