Verena Limperger, MD1*, Gili Kenet, MD2, Christine Heller, MD3*, Ralf Knoefler, MD4*, Karin Kurnik, MD5*, Ulrich C Klostermeier, MD6*, Rolf Mesters, MD7, Neil A Goldenberg, MD, PhD8, Guy Young, MD9 and Ulrike Nowak-Gottl, MD1
1Institute of Clinical Chemistry, University Hospital Schleswig-Holstein, Kiel, Germany
2Thrombosis Unit, National Hemophilia Center, The Chaim Sheba Medical Center, Ramat Gan, Israel
3Department of Pediatric Hemostaseology, University Hospital Frankfurt, Frankfurt/ Main, Germany
4Pediatric Hematology and Oncology, University Hospital Dresden, Dresden, Germany
5Pediatric Hemophilia Centre, Munich, Germany
6Department of Clinical Chemistry, University Hospital Schleswig-Holstein, Kiel, Germany
7Department of Internal Medicine A, University Hospital Münster, Münster, Germany
8All Children's Hospital Johns Hopkins Medicine (ACH-JHM) and All Children's Research Institute, St. Petersburg, FL
9Children's Hospital of Los Angeles, Los Angeles, CA