@misc{indiciae9a738bfc4fa7,
  title = {THE NEW PENICILLINS.},
  author = {J O Klein and M Finland},
  year = {1963},
  doi = {10.1056/nejm196311072691907},
  url = {https://pubmed.ncbi.nlm.nih.gov/14059727/},
  note = {Source identifier: 14059727}
}