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   Kirandeep Kaur et al, 2022, BMJ Case Reports CrossRef
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   Hassan Izzedine et al, 2022, Nephrology Dialysis Transplantation CrossRef
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   Ruisha Tu et al, 2018, Experimental and Therapeutic Medicine CrossRef
4. Recurrent Hypocalcemic Tetany as the Initial Presentation in Some Persons with Hyperthyroidism: A Case Series
   Yakubu Lawal et al, 2021, Dubai Diabetes and Endocrinology Journal CrossRef
5. Disorders of calcium metabolism
   William E. Winter et al, 2021, Handbook of Diagnostic Endocrinology CrossRef