Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YASUDA KIMIO and SHIBUYA TOMOHISA and NOZAKI MASAKATSU and TSURUMI KAITO and FUJIMURA HAJIME and KANEUCHI FUMIKO,Simultaneous Determination of Glycyrrhizin and Glycyrrhetic Acid in Plasma by High Speed Liquid Chromatography,YAKUGAKU ZASSHI,00316903,The Pharmaceutical Society of Japan,1978,98,11,1545-1547,https://cir.nii.ac.jp/crid/1390282681191872384,https://doi.org/10.1248/yakushi1947.98.11_1545