@misc{indiciae0e41f7e97429,
  title = {Problem hepatitis viruses: the mutants.},
  author = {R S Koff},
  year = {1994},
  doi = {10.1016/0002-9343(94)90191-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/8109589/},
  note = {Source identifier: 8109589}
}