A Barnbrock1, C Heller2, C Königs2, U Budde3, D Schwabe2. 1. Comprehensive Care Centre for Thrombosis and Hemostasis, University Hospital Frankfurt, Goethe University, Frankfurt, Germany. anke.barnbrock@kgu.de. 2. Comprehensive Care Centre for Thrombosis and Hemostasis, University Hospital Frankfurt, Goethe University, Frankfurt, Germany. 3. Medylis Laborgesellschaft mbH, Hamburg, Germany.