- Children with clinical or laboratory evidence of hepatic disease- transaminase levels three times the upper normal range (Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT)) and/or a increased level of Gamma-glutamyltransferase (GGT), Prothrombin Time (PT), International Normalized Ratio (INR) from the reference normal range and a serum albumin less than the reference normal range of the Johns Hopkins Clinical Laboratories.