Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Masashi Kanai and Etsuro Hatano and Hiroaki Nagano and Tatsuya Ioka,Clinical trials of gemcitabine/cisplatin/S-1 (GCS) combination therapy for patients with advance biliary tract cancer,Annals of Oncology,0923-7534,Elsevier BV,2016-11-01,27,,vii41,https://cir.nii.ac.jp/crid/1871146592477258112,https://doi.org/10.1093/annonc/mdw486.002