Balloon-occluded retrograde transvenous obliteration for gastric variceal bleeding: its feasibility compared with transjugular intrahepatic portosystemic shunt - Choi,Y.H.; Yoon,C.J.; Park,J.H.; Chung,J.W.; Kwon,J.W.; Choi,G.M. (Korean J Radiol, 2003)