Institute for Digestive Research University of Health Sciences 44307;
Department of Gastroenterology University of Health Sciences 44307;
Department of Surgery University of Health Sciences 44307;
Department of Gastroenterology and Infectious Diseases-Guericke University Hospital 39120;
Institute of Clinical and Preventive Medicine&Faculty of Medicine of Latvia 1586;
Gastric cancer; Atrophic gastritis; TUMORIGENESIS; Helicobacter pylori; MicroRNAs; Biomarkers;