Fleischer David E, Heigh Russell I, Nguyen Cuong C, Leighton Jonathan A, Sharma Virender K, Musil Danette
Division of Gastroenterology & Hepatology, Mayo Clinic Scottsdale, Scottsdale, Arizona 85259, USA.
Gastrointest Endosc. 2003 Mar;57(3):427-8. doi: 10.1067/mge.2003.118.