A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL. The file type is application/pdf.
application/pdf
藤井 弘吉. "ビリルビンの腸管内吸收に関する実驗的研究." Okayama Igakkai Zasshi (Journal of Okayama Medical Association) 64.4 (1952) 627-638