1. Commission on Biochemistry of Liver Disease, Spanish Society of Laboratory Medicine (SEQC-ML) , Barcelona , Spain
2. Service of Clinical Analysis, Hospital Universitario Marqués de Valdecilla , Santander , Spain
3. Service of Biochemistry and Molecular Genetics, CDB, Hospital Clinic de Barcelona, IDIBAPS, CIBEREHD , Barcelona , Spain
4. Spanish Society of Digestive Pathology (SEPD) , Madrid , Spain
5. Service of Digestive System, Hospital Universitario Marqués de Valdecilla, Clinical and Traslational Research Group on Digestive Disorders, IDIVAL , Santander , Spain
6. Service of Clinical Analysis, Hospital de Barbastro , Huesca , Spain
7. Service of Clinical Analysis and Biochemistry, Laboratori Clínic Metropolitana Nord, Hospital Universitari Germans Trias i Pujol , Badalona , Spain
8. Departments of Biochemistry and Microbiology , Unit of Liver Disease, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona , Barcelona , Spain
9. Department of Biomedicine of the Faculty of Medicine and Health Sciences , Service of Biochemistry and Molecular Genetics, Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, University of Barcelona , Barcelona , Spain