- Dr Cristina Rigamonti, First Division of Gastroenterology, Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Via Sforza, 35 – 20122 Milano, Italy;
- Revised January 13, 2008
- Accepted January 15, 2008
- First published January 24, 2008.
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