Department of Cardiology;
Royal Hospital;
PB 1331;
Muscat-111;
Oman;
Department of Hematology and Director of Medical Laboratories;
Royal Hospital;
PB 1331;
Muscat-111;
Oman;
Department of Medicine;
Royal Court Affairs;
PB 118;
CPO Seeb-111;
Oman;
Department of Cardiovascular Medicine;
UAE University;
PB 17666;
Al-Ain;
United Arab Emirates;
Warfarin; Major; bleeding; Mechanical; heart; valve; Thromboembolism; Vitamin; K; Fresh; frozen; plasma; Prothrombin; complex; concentrate; Recombinant; activated; factor; Ⅶa;