Neonatal severe hyperparathyroidism due to a homozygous mutation of calcium-sensing receptor; a challenging case

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited Correspondence: FRH < raihana.nuzair@gmail.com>. Conflicts of interests There are no conflicts of interest. None of the authors received funding. HHS Public Access Author manuscript Ceylon Med J. Author manuscript; available in PMC 2020 June 01.