著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) FREANEY R,A secondary hyperparathyroidism in elderly people : combined effect of renal insufficiency and vitamin D deficiency,Am J Clin Nutr,,,1993,58,,187-191,https://cir.nii.ac.jp/crid/1573387450577580416,