Department of Clinical Pathology;
Hakodate Municipal Hospital;
Hakodate;
Japan;
Department of Gastroentelology;
Hokkaido University Graduate School of Medicine;
Sapporo;
Japan;
Department of Gastroenterology;
Hakodate Municipal Hospital;
Hakodate;
Japan;
Department of Hematology and Oncology;
Hokkaido University Graduate School of Medicine;
Sapporo;
Japan;
Department of Internal Medicine;
Hakodate Municipal Hospital;
Hakodate;
Japan;
Department of Surgery;
Hakodate Municipal Hospital;
Hakodate;
Japan;
Department of Urology;
Hakodate Municipal Hospital;
Hakodate;
Japan;