@misc{indiciae0576800e95e8,
  title = {Simple method for measuring haemoglobin. Evaluation in Andean rain forest.},
  author = {K G Nicholson and C A Metcalf and A Renshaw and J M Rideout},
  year = {1977},
  doi = {10.1016/s0140-6736(77)92781-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/67340/},
  note = {Source identifier: 67340}
}