title: Letter: Masked primary (or tertiary) hyperparathyroidism.
mesh_terms: D000328:Adult; D002118:Calcium / Q000097:blood; D005260:Female; D006801:Humans; D006934:Hypercalcemia / Q000150:complications; D006961:Hyperparathyroidism / Q000097:blood / Q000150:complications*; D012859:Sjogren's Syndrome / Q000150:complications; D014808:Vitamin D Deficiency / Q000150:complications
chemical_list: D002118:Calcium