Widjaja, S., Tambunan, K., Siregar, Y., Dharma, R., & Koh, S. 2015 Jul 9. VEGF, D-dimer and Coagulation Activation Markers in Indonesian Patients with Polycythemia Vera and Essential Thrombocythemia and Their Relation with Recurrence of Thrombosis. International Archives of Medicine. [Online] 8: