1. Department of Hepatology; National Institute of Gastroenterology; Havana Cuba
2. Division of Gastroenterology and Hepatology; Indiana University School of Medicine; Indiana USA
3. School of Medicine and Pharmacology; The University of Western Australia; Nedlands Australia
4. Division of Liver Diseases; Icahn School of Medicine at Mount Sinai; New York USA
5. Department of Pathology; National Institute of Gastroenterology; Havana Cuba
6. Department of Radiology; National Institute of Gastroenterology; Havana Cuba
7. Liver Unit; Department of Gastroenterology; Valencia University General Hospital; Valencia Spain