@misc{indiciaed36fd9605715,
  title = {Recurrent peptic ulcers.},
  author = {D Johnston and R L Blackett},
  year = {1987},
  doi = {10.1007/bf01658103},
  url = {https://pubmed.ncbi.nlm.nih.gov/3604234/},
  note = {Source identifier: 3604234}
}