Faigel Douglas O, Pike Irving M, Baron Todd H, Chak Amitabh, Cohen Jonathan, Deal Stephen E, Hoffman Brenda, Jacobson Brian C, Mergener Klaus, Petersen Bret T, Petrini John L, Rex Douglas K, Safdi Michael A
Oregon Health & Science University, Portland, USA.
Am J Gastroenterol. 2006 Apr;101(4):866-72. doi: 10.1111/j.1572-0241.2006.00677.x.