@misc{indiciaec3ea49b4fc3d,
  title = {Venous occlusion plethysmography. Part 1: basic principles and applications.},
  author = {J E Sigdell},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/1182259/},
  note = {Source identifier: 1182259}
}