Adenoma, OxyphilicAdenomaAdenoma, Liver CellOxyphil CellsParathyroid HormoneParathyroid GlandsAdenoma, BasophilThyroid NeoplasmsParathyroid NeoplasmsPituitary NeoplasmsParotid NeoplasmsParathyroid DiseasesParathyroid Hormone-Related ProteinProlactinomaLymphocytes, NullReceptor, Parathyroid Hormone, Type 1HyperparathyroidismCarcinogenicity TestsPituitary HormonesReceptors, Parathyroid HormoneAdenoma, PleomorphicAdenoma, VillousRats, Inbred F344ParathyroidectomyLiver NeoplasmsHypercalcemiaThyroid GlandImmunohistochemistryHyperparathyroidism, SecondaryHyperparathyroidism, PrimaryAdenoma, Islet CellAdrenocortical AdenomaNeoplasms, ExperimentalHypocalcemiaReceptors, Calcium-SensingReceptor, Parathyroid Hormone, Type 2TeriparatideHypoparathyroidismAdenoma, ChromophobeHyperplasiaGrowth Hormone-Secreting Pituitary AdenomaColorectal NeoplasmsCalciumColonic PolypsACTH-Secreting Pituitary AdenomaPhosphorusAdenoma, AcidophilTechnetium Tc 99m SestamibiColonoscopyAdenomatous PolypsCalcitriolPhosphatesChoristomaUremiaAdrenal Cortex NeoplasmsVitamin DBone and BonesThyroidectomyCalcitonin