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Our article analyzes the usefulness of free 25(OH)D in individuals with primary hyperparathyroidism before and after supplementation with cholecalciferol. There are few studies in the literature on this topic, in addition we can contribute to clinical practice by verifying whether free 25(OH)D is necessary to evaluate the patient with primary hyperparathyroidism.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}