Partsch H.: "Betterable" and "nonbetterable" chronic venous insufficiency. A proposal for a practice oriented classification. Vasa9:165-167, 1980.
2.
Pierchalla P. , Tronnier H.: Diagnosis and classification of venous insufficiency of the leg. Dtsch Med Wochenschr110:1700-1702, 1985.
3.
Sytchev GG: Classification of chronic venous disorders of lower extremities and pelvis . Int Angiol4:203-206, 1985.
4.
Porter JM, Rutheford RB, Clagett GP, et al. Reporting standards in venous disease. J Vasc Surg8:172-181, 1988.
5.
Griton P., Widmer LK: Classification of varices and venous insufficiency. J Mal Vasc17(Suppl B):102-108, 1992.
6.
Miranda C., Fabre M., Meyer P., Marescaux J.: Evaluation of a reference anatomoclinical classification of varices of the lower limbs. Phlebologie46:235-239, 1993.
7.
Porter JM, Moneta GL, and International Consensus Committee on Chronic Venous Disease: Reporting standards in venous disease: An update. J Vasc Surg21:635-645, 1995.
