Patients with nonalcoholic fatty liver disease (NAFLD) may have normal alanine aminotransferase (ALT) levels in spite of having advanced fibrosis, according to a new study in the September issue of Hepatology, a journal published by John Wiley & Sons on behalf of the American Association for the Study of Liver Diseases (AASLD). The article is available online at Wiley Interscience (http://www.