VTE venous thromboembolism (VTE) World Thrombosis Day http://www.worldthrombosisday.org/issue/vte/ World Thrombosis Day 500,000 deaths Global Thrombosis Day Movement 10 million people http://www.worldthrombosisday.org/issue/vte/ World Thrombosis Day Venous Thromboembolis (VTE) more than 300 organizations 500,000 deaths http://www.worldthrombosisday.org/issue/vte/ venous thromboembolism Venous Thromboembolis (VTE) venous thromboembolism VTE