Pediatric Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management 1348 pp. $235.00RobertWyllieJeffrey S.HyamsMarshaKay3rd ed.2006SaundersPhiladelphia, PennsylvaniaISBN 0-7216-3924-0. Web site for ordering: www.elsevierhealth.com.