Association between thiamine decrease and neuropsychiatric symptoms in gastrointestinal and hematological cancer patients receiving chemotherapy oleh Yohei Iimura, Tomohiro Kurokawa, Shohei Andoh, Yoshiaki Kanemoto, Toyotaka Kawamata, Kentaro Yazawa, Aki Sato, Kazuaki Yokoyama, Yoichi Imai, Giichiro Tsurita, Yuka Ahiko, Susumu Aikou, Dai Shida, Masanori Nojima, Arinobu Tojo, Munetoshi Sugiura, Seiichiro Kuroda