@misc{indiciaede1f4297be00,
  title = {Valve data collection: problems and pitfalls.},
  author = {P J Drury and M M Black and C J Ashman and J Piercey},
  doi = {10.3109/03091909209021950},
  url = {https://pubmed.ncbi.nlm.nih.gov/1640447/},
  note = {Source identifier: 1640447}
}