@misc{indiciae250c0246868f,
  title = {Some practical advice concerning Helicobacter pylori.},
  author = {M Levy and R Hansing and H D'Amico and R Guillan},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1879120/},
  note = {Source identifier: 1879120}
}