Department of Gastroenterology and Hepatology;
HELIOS Klinikum Siegburg;
53129 Siegburg;
Germany;
Portal; hypertension; Esophageal; varices; Gastric; varices; Portal; hypertensive; gastropathy; Gastric; antral; vascular; ectasia-syndrome; Variceal; bleeding; Endoscopy; Band; ligation; Beta-blocker;