@misc{indiciae2943c6618f70,
  title = {Letter: Certificates and responsibility.},
  author = {G D Parkin},
  year = {1974},
  doi = {10.1136/vr.94.26.624},
  url = {https://pubmed.ncbi.nlm.nih.gov/4439623/},
  note = {Source identifier: 4439623}
}