@misc{indiciae6bf7a8a9016c,
  title = {The Lidwill machine.},
  author = {C Ball},
  year = {1990},
  doi = {10.1177/0310057x9001800101},
  url = {https://pubmed.ncbi.nlm.nih.gov/2186659/},
  note = {Source identifier: 2186659}
}