Department of Gastroenterology;
Tama-Nagayama University Hospital;
Nippon Medical School;
Department of Environmental and Preventive Medicine;
Oita University of Medicine;
Department of Molecular Pathology;
Oita University of Medicine;
Vice President of Mongolian National University of Medical Sciences and President of Mongolian Society of Gastroenterology;
Department of Endoscopy;
Ulaanbaatar Songdo Hospital;
Department of Gastroenterology;
Mongolian National University of Medical Sciences;
Department of Gastroenterology;
Third Central State Hospital;
Chronic; inflammation; Gastric; cancer; Glandularatrophy; Helicobacter; pylori; Intestinal; metaplasia; Japanese; Mongolian; Neutrophil; activity; Non-East-Asian-type; strain;