Barabino Arrigo, Gandullia Paolo, Arrigo Serena, Vignola Silvia, Mattioli Girolamo, Grattarola Claudia
Gastroenterology and Endoscopy Unit, Pediatric Surgery, Anesthesiology Department, G. Gaslini Institute for Children, Genoa, Italy.
Gastrointest Endosc. 2011 Feb;73(2):401-3. doi: 10.1016/j.gie.2010.06.052. Epub 2010 Sep 24.