1. Centre of Alcohol Research; University of Heidelberg; Heidelberg Germany
2. Department of Medicine (Gastroenterology & Hepatology); Salem Medical Centre; Heidelberg Germany
3. Department of Pathology; University of Heidelberg; Heidelberg Germany
4. Institute of Pathology; University Medicine; University of Mainz; Mainz Germany
5. Department of Gastroenterology and Hepatology; University Hospital Zürich; Zürich Switzerland
6. Institute of Medical Biometry and Informatics; University of Heidelberg; Heidelberg Germany
7. Division of Toxicology and Cancer Risk Factors; German Cancer Research Centre (DKFZ); Heidelberg Germany