*Department of Pediatrics, Gastroenterology-Endoscopy, Italy
†Rheumatology Units, University of Padua, Padua, Italy
Received 11 November, 2008
Accepted 17 July, 2009
Address correspondence and reprint requests to Prof. Graziella Guariso, Dipartimento di Pediatria, Via Giustiniani 3, 35128 Padua, Italy (e-mail: firstname.lastname@example.org).
The authors report no conflicts of interest.