Magnesium ion and parathyroid function.
D002118:Calcium / Q000494:pharmacology; D006801:Humans; D008274:Magnesium / Q000494:pharmacology*; D008275:Magnesium Deficiency / Q000378:metabolism; D010281:Parathyroid Hormone / Q000378:metabolism*
D010281:Parathyroid Hormone; D008274:Magnesium; D002118:Calcium