@misc{indiciae42d09d5c20c3,
  title = {Recertification for competence.},
  author = {L Hsia},
  doi = {10.1016/0091-2182(81)90140-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/6911156/},
  note = {Source identifier: 6911156}
}