1. Division of Gastroenterology and Hepatology; Department of Internal Medicine; Medical University of Graz; Graz Austria
2. Department of Gynecology and Obstetrics; Medical University of Graz; Graz Austria
3. Institute of Pathology; Medical University of Graz; Graz Austria
4. Institute of Physiological Chemistry; Center of Physiological Medicine; Medical University of Graz; Graz Austria