@misc{indiciaeeb19e3ad988d,
  title = {Trials and errors.},
  author = {P Knipschild},
  year = {1993},
  doi = {10.1136/bmj.306.6894.1706},
  url = {https://pubmed.ncbi.nlm.nih.gov/8343624/},
  note = {Source identifier: 8343624}
}