1 Digestive Disease Department, Hospital Clínico Universitario de Valencia, Valencia, Spain; INCLIVA Biomedical Research Institute, Valencia, Spain.
2 Biostatistics Unit, INCLIVA Biomedical Research Institute, Valencia, Spain.
3 Vienna Hepatic Hemodynamic Laboratory, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria.