Department of Radiology;
Soonchunhyang University Seoul Hospital;
Department of Radiology;
Soonchunhyang University Gumi Hospital;
Department of Gastroenterology;
Soonchunhyang University Seoul Hospital;
Hepatic; venous; pressure; gradient; Liver; cirrhosis; Esophageal; varices; Endoscopic; grade; of; esophageal; v;