Figure 3 visualizes the findings of the hemoglobin and platelet counts of the three groups, showing a scattering of the values without classification of the groups. Patients with the mutation JAK2 p.V617F had a significantly longer history of abdominal venous thromboses. They were significantly more often treated by surgery (4 of 13 patients). Nine of the thirteen patients with the mutation JAK2 p.V617F received anticoagulants. The gene discussed is JAK2; the disease is thrombotic disease.