@misc{indiciae337c0d5f5ca6,
  title = {Hepatitis B and endoscopy.},
  author = {A G Morgan and W A McAdam and B E Walker},
  year = {1978},
  doi = {10.1136/bmj.1.6109.369},
  url = {https://pubmed.ncbi.nlm.nih.gov/414809/},
  note = {Source identifier: 414809}
}