@misc{indiciae7cbaa2946121,
  title = {Impenetrable Journal articles.},
  author = {R P Harbord},
  year = {1990},
  doi = {10.1056/nejm199001183220319},
  url = {https://pubmed.ncbi.nlm.nih.gov/2294446/},
  note = {Source identifier: 2294446}
}