1. Department of Blood Group Serology and Transfusion Medicine Medical University of Graz Graz Austria
2. Institute for Medical Informatics, Statistics and Documentation Medical University of Graz Graz Austria
3. FH Campus Wien University of Applied Sciences Vienna Austria
4. Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Research Unit Molecular Diagnostics, Diagnostic and Research Center for Molecular Biomedicine Medical University of Graz Graz Austria
5. Section of Infectious Diseases and Tropical Medicine, Department of Internal Medicine Medical University of Graz Graz Austria
6. Department of Internal Medicine Landeskrankenhaus Graz II Graz Austria