Practical Dimensions And Optimal Deployment Of Non-VKA Oral Anticoagulants In NVAF: The Role of Key Clinical Factors – Age, CHADS2-VASc2 Score, Renal Function, Bleeding Risk, Previous Stroke, Dosing and Adherence – In Selecting an Evidence-Based Approach to Stroke Prevention in AF - Jafna L Cox, BA, MD, FRCP, FACC