Marina P. Colella, Maiara M.L. Fiusa, Fernanda L.A. Orsi, Erich V. de Paula and Joyce M. Annichino-Bizzacchi
Vitamin K antagonists (VKAs), such as warfarin, are currently the most widely used drugs for oral anticoagulation. The anticoagulant effect of VKAs has to be
monitored by the prothrombin time (PT), using as a parameter the international normalized…
