@misc{indiciae39b560088a21,
  title = {Construction and expression of plasmids containing mutated diphtheria toxin A-chain-coding sequences.},
  author = {K S Fisher and I H Maxwell and J R Murphy and J Collier and L M Glode},
  year = {1991},
  doi = {10.1128/iai.59.10.3562-3565.1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1894362/},
  note = {Source identifier: 1894362}
}