1. Institute for Biochemistry; Justus-Liebig-University; Giessen Germany
2. Chemical & Systems Biology; School of Medicine; Stanford University; Stanford CA USA
3. Inserm; Inserm UMR-S U919; Serine Proteases and Pathophysiology of the Neurovascular Unit; Université de Caen Basse-Normandie, GIP Cyceron; Caen France
4. Theodor Kocher Institute; University of Bern; Bern Switzerland
5. Institute of Anatomy and Cell Biology; Justus-Liebig-University; Giessen Germany
6. Department of Neurology; Justus-Liebig-University; Giessen Germany
7. Institute for Basic Medical Sciences; University of Oslo; Sognvannsveien 9 Oslo 0372 Norway