1. Department of Internal Medicine I, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany;
2. Cirrhosis Center Mainz (CCM), University Medical Center of the Johannes Gutenberg-University, Mainz, Germany;
3. Department of Medicine, University of Padova, Padova, Italy;
4. Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy;
5. Department of Gastroenterology and Hepatology, Hospital of South West Jutland, Esbjerg, Denmark;
6. Department of Medicine I, University Hospital Schleswig-Holstein, Lübeck, Germany;
7. Clinic for Neurology, Hannover Medical School, Hannover, Germany;
8. Department of Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, Michigan, USA;
9. Department of Internal Medicine IV, Jena University Hospital, Jena, Germany;
10. First Department of Internal Medicine, Martin-Luther-University Halle-Wittenberg, Halle, Germany;
11. Service d'hépato-gastroentérologie, Sorbonne Université, Hôpital Pitié-Salpêtrière Assistance Publique Hôpitaux de Paris, Paris, France;
12. Department of Medicine, Diakonie Hospital Jung-Stilling, Siegen, Germany;
13. Chronobiology Section, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK.