@misc{indiciaec7b00067ef08,
  title = {Hepatitis B virus "escape" mutants.},
  author = {D H Crawford},
  year = {1990},
  doi = {10.1136/bmj.301.6760.1058},
  url = {https://pubmed.ncbi.nlm.nih.gov/2147398/},
  note = {Source identifier: 2147398}
}