@misc{indiciaea9be439f1a87,
  title = {A commentary on recertification.},
  author = {A M Waldman},
  year = {1976},
  doi = {10.1016/s0022-3476(76)80633-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/993909/},
  note = {Source identifier: 993909}
}