Correction to: Laboratory Investigation (2013) 93, 135–144; doi: 10.1038/labinvest.2012.143; published online 15 October 2012

In this article, a second affiliation for co-author Marçal Pastor-Anglada was inadvertently omitted: Departament de Bioquímica i Biologia Molecular, Facultat de Biologia, Institut de Biomedicina, Universitat de Barcelona and National Biomedical Research Institute of Liver and Gastrointestinal Diseases (CIBER EHD).