Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kubo Shoji and Takemura Shigekazu and Sakata Chikaharu and Urata Yorihisa and Nishioka Takayoshi and Nozawa Akinori and Kinoshita Masahiko and Hamano Genya and Nakanuma Yasuni and Endo Ginji,Changes in Laboratory Test Results and Diagnostic Imaging Presentation before the Detection of Occupational Cholangiocarcinoma,Journal of Occupational Health,13419145,Japan Society for Occupational Health,2014,56,4,317-322,https://cir.nii.ac.jp/crid/1390282679432528128,https://doi.org/10.1539/joh.14-0002-cs