1. Guideline for management of wounds in patients with lower-extremity venous disease;Johnson JJ,2005
2. Acute & chronic wounds: nursing management;Doughty DB,2000
3. Leg ulcers: epidemiology and aetiology;Cornwall JV;Br J Surg,1986
4. Varicose veins and chronic venous insufficiency in Brasil: prevalence among 1755 inhabitants of a country town;Maffei FHA;J Epidemiol,1986