Useful Resources Atrial fibrillation stroke risk CHADS2 VASC Bleeding risk calculator HAS-BLED Cardiovascular risk assessment CVD Check Heart Age NZ Risk prediction for recurrent venous thromboembolism Vienna Prediction Model Useful sites Assessing Fitness to Drive for Commercial and Private Vehicle Drivers (Updated August 2017) Assessing Fitness to Drive National Heart Foundation Cardiac Society of Australia and New Zealand Australian Council on Healthcare Standards Fellowship of the Royal Australasian College of Physicians