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) KITTAKA-KATSURA Hiromi and WATANABE Fumio and NAKANO Yoshihisa,"Occurrence of Vitamin B12 in Green, Blue, Red, and Black Tea Leaves",Journal of Nutritional Science and Vitaminology,03014800,一般財団法人 学会誌刊行センター,2004,50,6,438-440,https://cir.nii.ac.jp/crid/1390001206324411776,https://doi.org/10.3177/jnsv.50.438