Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) RESNICK LM,"Divalent cations in essential hypertension. Relations between serum ionized calcium, magnesium, and plasma renin activity",N Engl J Med,,,1983,309,,888-891,https://cir.nii.ac.jp/crid/1572261549206072960,