@misc{indiciae9b9646eebee8,
  title = {An integrated-circuit pulse-height analyzer for physiological research.},
  author = {L F Walsh and W J Mueller and R J O'Connell},
  year = {1968},
  doi = {10.1152/jappl.1968.24.5.736},
  url = {https://pubmed.ncbi.nlm.nih.gov/5647658/},
  note = {Source identifier: 5647658}
}