מחקרים RNA-Protein Binding and Post-transcriptional Regulation of Parathyroid Hormone Gene Expression by Calcium and Phosphate Regulation of parathyroid hormone messenger RNA levels by protein kinase A and C in bovine parathyroid cells Regulation of the parathyroid hormone gene by calcium, phosphate and 1,25-dihydroxyvitamin D New aspects in the control of parathyroid hormone secretion