Lorenzo-Zúñiga Vicente, de Vega Vicente Moreno, Boix Jaume
Endoscopy Unit, Department of Gastroenterology, Hospital Universitari Germans Trias i Pujol, Badalona, Spain.
Eur J Gastroenterol Hepatol. 2010 Mar;22(3):378-9. doi: 10.1097/MEG.0b013e32832bbb95.