@misc{indiciae4021e760e364,
  title = {Recertification and continuing education.},
  author = {A Von Hippel},
  year = {1979},
  doi = {10.1016/s0003-4975(10)63161-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/496503/},
  note = {Source identifier: 496503}
}