@misc{indiciaebd02181877fa,
  title = {Professional qualifications.},
  author = {R L Williams},
  year = {1989},
  doi = {10.1016/0379-0738(89)90137-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/2703195/},
  note = {Source identifier: 2703195}
}