1) The Consensus Group: Classification and grading of chronic venous disease in the lower limb: A consensus statement. Vasc. Surg., 1996, 30: 5-11.
2) Rutherford, R. B., Padberg, F. T., Comerota, A. J., et al.: Venous severity scoring: An adjunct to venous outcome assessment. J. Vasc. Surg., 2000, 31: 1307-1312.
3) McDaniel, H. B., Marston, W. A., Farber, M. A., et al.: Recurrence of chronic venous ulcers on the basis of clinical, etiologic, anatomic, and pathophysiologic criteria and air plethysmography. J. Vasc. Surg., 2002, 35: 723-728.
4) Barwell, J. R., Davis, C. E., Deacon, J., et al.: Comparison of surgery and compression with compression alone in chronic venous ulceration (ESCHAR study): randomized controlled trial. Lancet, 2004, 363: 1854-1859.
5) Barwell, J. R., Taylor, M., Deacon, J., et al.: Surgical correction of isolated superficial venous reflux reduces long-term recurrence rate in chronic venous leg ulcers. Eur. J. Vasc. Endovasc. Surg., 2000, 20: 363-368.