@misc{indiciaefc6d11224321,
  title = {Hepatitis prophylaxis for travellers.},
  author = {P G Hill and T J John},
  year = {1979},
  doi = {10.1016/s0140-6736(79)90308-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/88622/},
  note = {Source identifier: 88622}
}