Hypo-hyperparathyroidism.

@article{Costello1963Hypohyperparathyroidism,
  title={Hypo-hyperparathyroidism.},
  author={John M. Costello and C. E. Dent},
  journal={Archives of disease in childhood},
  year={1963},
  volume={38},
  pages={397-407}
}