@misc{indiciaed18d0f69c1de,
  title = {Continuous measurement of blood volume using light reflection: method and validation.},
  author = {J P de Vries and C G Olthof and V Visser and P M Kouw and P M de Vries},
  year = {1993},
  doi = {10.1007/bf02446697},
  url = {https://pubmed.ncbi.nlm.nih.gov/8231306/},
  note = {Source identifier: 8231306}
}