@misc{indiciae28b182eef8fb,
  title = {Serum-calcium.},
  author = {R B Payne and B E Walker},
  year = {1979},
  doi = {10.1016/s0140-6736(79)91935-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/87718/},
  note = {Source identifier: 87718}
}