1. Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna , 1090 Vienna , Austria
2. Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna , 1090 Vienna , Austria
3. Centre of Excellence-High Field MR, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna , 1090 Vienna , Austria
4. Department of Laboratory Medicine, Medical University of Vienna , 1090 Vienna , Austria