@misc{indiciaeca257a448b65,
  title = {Accurate hemoglobin determination.},
  author = {S Eichen and J H Mandel and R D Schwenk and D L Warfield},
  year = {1977},
  doi = {10.1093/ajcp/68.1.91},
  url = {https://pubmed.ncbi.nlm.nih.gov/868811/},
  note = {Source identifier: 868811}
}