@misc{indiciae939dc72ab08a,
  title = {Penicillin-protein complexes.},
  author = {I M KLOTZ and J M URQUHART and W W WEBER},
  year = {1950},
  url = {https://pubmed.ncbi.nlm.nih.gov/15419758/},
  note = {Source identifier: 15419758}
}