Cucchiara S, Di Nardo G
Pediatric Gastroenterology Endoscopy and Liver Unit, Department of Pediatrics, "Sapienza" University of Rome, University Hospital Umberto I, Rome, Italy.
Dig Liver Dis. 2009 Sep;41(9):630-1. doi: 10.1016/j.dld.2009.05.017. Epub 2009 Jul 2.