*Department of Paediatric Gastroenterology, Great Ormond Street Hospital, London, UK
†Department of Pediatrics, Gastroenterology Service, University of Parma, Parma, Italy.
Address correspondence and reprint requests to Osvaldo Borrelli, MD, PhD, Department of Pediatric Gastroenterology, Division of Neurogastroenterology and Motility, Great Ormond Street Hospital for Sick Children, Great Ormond Street, London WC1N 3HZ, UK (e-mail: firstname.lastname@example.org).
Received 10 June, 2011
Accepted 26 July, 2011
The authors report no conflicts of interest.