DECIDE COAG is a clinical decision support tool developed to guide physicians as they make decisions about prescribing anticoagulants.Function1. Warfarin dosing CalculatorThis application functions is a tool for Warfarin dosage adjustment, to help make adjustment to therapy for patients currently receiving warfarin who are no longer in the therapeutic range at admission or during clinic visit.2. DOAC dosing recommendationThis application functions is a tool for DOAC dosage recommendation in 2 situations. (Atrial fibrillation and Venous thromboembolism)3. Perioperative managementThis application functions is guide for perioperative management to - Assist physicians is the simultaneous of procedure- related bleeding risk and underlying risk of thrombosis.- Guide decisions regarding the interruption of anticoagulant and the use of anticoagulant bridging and when to restart anticoagulants.- Provide details guidance for drug dosing and laboratory monitoring in the peri-procedural period.4. Bleeding managementThis application functions is a tool support physician decision about bleeding management for patient receiving anticoagulant (Warfarin, DOAC, Heparin) including the suggested use of reversal/hemostatic agents.