Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIBATA Katsumi and ONODERA Michiko and SHIMADA Shun-ichi and YASUDA Kazuto,Changes in Nicotinamide Metabolism and Its Bioavailability during Long-Term Administration of a Multivitamin Preparation,VITAMINS,0006386X,THE VITAMIN SOCIETY OF JAPAN,1992,66,5-6,309-314,https://cir.nii.ac.jp/crid/1390001205833695232,https://doi.org/10.20632/vso.66.5-6_309