Department of Gastroenterology;
Toyonaka Municipal Hospital;
Department of Gastroenterology;
National Hospital Organization;
Tokyo Medical Center;
Division of Gastroenterology;
Cancer Institute Hospital;
Tokyo;
Department of Gastrointestinal Oncology;
Osaka Medical Center for Cancer and Cardiovascular Diseases;
Department of Gastroenterology and Hepatology;
Osaka University of Graduate School of Medicine;
Department of Gastroenterology;
Teikyo University Medical Center;
Endoscopic; submucosal; dissection; Gastriccancer; Elderly; person; Antithrombotic; agents; Livercirrhosis; Chronic; kidney; disease;