@misc{indiciae882235d5567c,
  title = {What is diphtheria toxin.},
  author = {J R MARRACK},
  year = {1958},
  doi = {10.1159/000228440},
  url = {https://pubmed.ncbi.nlm.nih.gov/13549049/},
  note = {Source identifier: 13549049}
}