Anti-R-Hirudin Antibodies Reveal Clinical Relevance through Direct Functional Inactivation of R-Hirudin or Prolongation of R-Hirudin’s Plasma Halflife - Huhle, Guenter; Liebe, Volker; Hudek, Renata; Heene, Dieter L. (Thrombosis and Haemostasis, 2001)