JAK2 and Venous thrombosis: The Arterial Risk Score included data on the cardiovascular risk factors (including male sex, tobacco, hypertension, diabetes, or hypercholesterolemia),TET2 or DNMT3A mutation, age at diagnosis of more than 60 years, and arterial thrombosis prior to or at diagnosis, while the Venous Risk Score included only venous thrombosis history prior to or at diagnosis, and JAK2 V617F mutation [91].