Część I: Wytyczne postępowania w hemofilii A i B niepowikłanej inhibitorem czynnika VIII i IX (wydanie zaktualizowane)

In this document, Working Group for Haemostasis of the Polish Society of Haematology and Blood Transfusion updates the principles of diagnosis and treatment of haemophilia A and B, published for the first time in 2008. In a companion paper (part II), the management of haemophilia A and B complicated by factor VIII and IX inhibitors will be covered.