Robert J Fraser, Marc Ritz, Addolorata C Di Matteo, Rosalie Vozzo, Monika Kwiatek, Robert Foreman, Brendan Stanley, Jack Walsh, Jim Burnett, Paul Jury, John Dent
World J Gastroenterol. 2006 Jan 28; 12(4): 582–587. Published online 2006 Jan 28. doi: 10.3748/wjg.v12.i4.582