Konkle B A, Nelson C, Forsyth A, Hume E
Penn Comprehensive Hemophilia and Thrombosis Program, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
Haemophilia. 2002 Sep;8(5):706-10. doi: 10.1046/j.1365-2516.2002.00649.x.