@misc{indiciaeb229ec5f5d9c,
  title = {Recertification: a time to consider.},
  author = {M A Shah},
  doi = {10.1016/0091-2182(78)90003-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/249782/},
  note = {Source identifier: 249782}
}