• References

    Deep vein thrombosis. Updated May 5, 2014. Accessed May 7, 2014.

    Matic PA, Vlajinac HD, et al. Chronic venous disease: Correlation between ultrasound findings and the clinical, etiologic, anatomic and pathophysiologic classification. Phlebology. 2013 Jul 15 [Epub ahead of print].

    Ultrasound—venous (extremities). Radiological Society of North America Radiology Info website. Available at: Updated August 27, 2013. Accessed May 7, 2014.

    Venous ultrasound of the legs (lower extremity doppler). Harvard Health Publications. Available at: Accessed May 7, 2014.

  • Resources - American Academy of Family Physicians - Radiological Society of North America

  • Canadian Resources

    Canadian Family Physicians