@misc{indiciaec3b2efcde7d2,
  title = {A sensitive digital plethysmograph.},
  author = {D G MELROSE and R B LYNN and R L RAINBOW and A G WHERRELL},
  year = {1954},
  doi = {10.1016/s0140-6736(54)91479-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/13153120/},
  note = {Source identifier: 13153120}
}