1. Department of Pathology, Innsbruck Medical University, Müllerstraße 44, 6020 Innsbruck, Austria
2. Department of Pathology, Ludwig-Maximilians-University Munich, Thalkirchner, Straße 36, 80337 Munich, Germany
3. Department of Pathology and Neuropathology, University of Duisburg-Essen, Hufelandstraße 55, 45147 Essen, Germany
4. Department of Cardiac Surgery, Innsbruck Medical University, Anichstraße 35, 6020 Innsbruck, Austria