HypocalcemiaHypoparathyroidismParathyroid HormoneThyroidectomyCalcium GluconateMagnesium DeficiencyParathyroid GlandsPseudohypoparathyroidismHypercalcemiaReceptors, Calcium-SensingParathyroidectomyCalcium22q11 Deletion SyndromeHyperparathyroidism, SecondaryPhosphorusRicketsHyperparathyroidismMagnesiumCalcitriolVitamin DDiGeorge SyndromeHyperparathyroidism, PrimaryPhosphatesParathyroid DiseasesCalcium Metabolism DisordersTetanyDelayed DiagnosisVitamin D DeficiencyCalcitoninThyroid DiseasesGraves DiseasePrenatal DiagnosisCalcium, DietaryEarly DiagnosisRetrospective StudiesDiphosphonatesOsteomalaciaRenal OsteodystrophyParathyroid NeoplasmsHypophosphatemiaMagnesium SulfateSensitivity and SpecificityBone Density Conservation AgentsPostoperative ComplicationsHyperphosphatemiaCalcium ChlorideBone DiseasesChromosomes, Human, Pair 22Chelation TherapySyntaxin 16