@misc{indiciaed4650b4b73c5,
  title = {The Hawksley random zero sphygmomanometer. Repeat experiment exonerates instrument.},
  author = {J Garrow and C Summerbell},
  year = {1993},
  doi = {10.1136/bmj.307.6896.123-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/8240507/},
  note = {Source identifier: 8240507}
}