@misc{indiciae753113e79515,
  title = {Helicobacter pylori positivity.},
  author = {U Blecker and Y Vandenplas},
  year = {1993},
  doi = {10.1007/bf02073390},
  url = {https://pubmed.ncbi.nlm.nih.gov/8223793/},
  note = {Source identifier: 8223793}
}