@misc{indiciae0cbc0d35eb03,
  title = {Letter: Masked primary (or tertiary) hyperparathyroidism.},
  author = {B I Hoffbrand},
  year = {1975},
  doi = {10.1016/s0140-6736(75)92628-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/49578/},
  note = {Source identifier: 49578}
}