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) CHEN Z,Serum cholesterol concentration and coronary heart disease in population with low cholesterol concentrations,BMJ,,,1991,303,,276-282,https://cir.nii.ac.jp/crid/1572824500546154368,