Correction: A Multicenter Retrospective Study on Adjuvant S-1 Chemotherapy Versus Observation Following Major Hepatectomy for Perihilar Cholangiocarcinoma

Affiliations

• ¹ Department of General Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
• ² Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan.
• ³ Division of Gastroenterological Surgery, Tokyo Women's Medical University Yachiyo Medical Center, Chiba, Japan.
• ⁴ Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanagawa, Japan.
• ⁵ Department of General Surgery, Chiba University Graduate School of Medicine, Chiba, Japan. [email protected].