1. Duplex scanning of the portal vein and portosystemic shunts;Ackroyd;Surgery,1986
2. Perioperative use of the duplex scan;Bandyk,1988
3. Long-term loss of Warren’s shunt selectivity: Angiographic demonstration;Belghiti;Arch Surg,1981
4. Ultrasound demonstration of changes in the normal portal venous system following a meal;Bellamy;Br J Radiol,1984
5. The ultrasonic demonstration of portacaval shunts;Berger;Br J Surg,1979