Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Kitajima, Kazuhiko and Miyamura, Sigenori and Murakawa, Setsuko",Direct Determination of Blood Ammonia by Berthelot’s Coloraiton of Protein-free Supernatant Obtained by Folin-Wu Deproteinizaion,山口医科大学紀要,,Yamaguchi University Graduate School of Medicine,1968-09,15,3,207-217,https://cir.nii.ac.jp/crid/1050282812431036160,