@misc{indiciae52de453a8809,
  title = {Normocalcaemic primary hyperparathyroidism.},
  author = {M Keynes},
  year = {1971},
  doi = {10.1016/s0140-6736(71)91649-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4103012/},
  note = {Source identifier: 4103012}
}