1. Clinical Institute of Pathology; Medical University of Vienna; Vienna Austria
2. Section of Endocrine Surgery; Division of General Surgery; Department of Surgery; Medical University of Vienna; Vienna Austria
3. Department of Internal Medicine I; Division of Oncology; Medical University of Vienna; Vienna Austria
4. Department of Internal Medicine I; Division of Endocrinology and Metabolism; Medical University of Vienna; Vienna Austria
5. Labor Kaserer, Salzer and Beer; Vienna Austria