Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NICS-EH study group,Randomized double-blind comparison of a calcium antagonist and a diuretic in elderly hypertensives,Hypertension,,,1999,34,,1129-1133,https://cir.nii.ac.jp/crid/1570572699770890496,