1. Center of Perioperative Thrombosis and Hemostasis, Zurich, Switzerland
2. Institute of Laboratory Diagnostics, Hygiene and Transfusion Medicine, Academic City Hospital, Ludwigshafen, Germany
3. Transfusion Center, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
4. Center of Hemostasis and Thrombosis Zurich, Zurich, Switzerland