Corleto Vito D, Di Giulio Emilio, Delle Fave Gianfranco
Department of Digestive and Liver Diseases, II School of Medicine, University La Sapienza, Rome, Italy.
Clin Gastroenterol Hepatol. 2007 Aug;5(8):e29. doi: 10.1016/j.cgh.2007.05.006. Epub 2007 Jul 10.