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) BRAUNSTEIN GD,Ectopic production of human chorionic gonadotrophin by neoplasms,Ann Intern Med,,,1973,78,,39-45,https://cir.nii.ac.jp/crid/1571980075101049856,