Methylated promoter DNA of CDO1 gene and preoperative serum CA19-9 are prognostic biomarkers in primary extrahepatic cholangiocarcinoma

• Shuji Nakamoto,

  Roles Writing – original draft

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Yusuke Kumamoto,

  Roles Conceptualization

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Kazuharu Igarashi,

  Roles Data curation

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Yoshiki Fujiyama,

  Roles Data curation

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Nobuyuki Nishizawa,

  Roles Data curation

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Shigenori Ei,

  Roles Data curation

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Hiroshi Tajima,

  Roles Data curation

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Takashi Kaizu,

  Roles Data curation

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Masahiko Watanabe,

  Roles Supervision

  Affiliation Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

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• Keishi Yamashita

  Roles Supervision

  * E-mail: keishi23@med.kitasato-u.ac.jp

  Affiliations Department of Surgery, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan, Division of Advanced Surgical Oncology, Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan

  http://orcid.org/0000-0002-8492-0300

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