@misc{indiciaeeb118d3c9ffa,
  title = {Who is properly certified?},
  author = {J S Carey},
  year = {1989},
  doi = {10.1097/00006534-198912000-00037},
  url = {https://pubmed.ncbi.nlm.nih.gov/2629730/},
  note = {Source identifier: 2629730}
}