1. Agnew MS, Gottrup F (2007) Causation of venous leg ulcers, cited in Marson MJ et al Leg ulcers a problem based learning approach. Mosby London
2. Adam DJ, Naik J, Hartshorn ET (2003) The diagnosis and management of 689 chronic leg ulcers in a single visit assessment clinic. European Journal of Vascular and Endovascular surgery 25:462 – 468
3. Briggs M, Closs SJ (2003) The prevalence of leg ulceration: a review of the literature. EUMA Journal 3 (2): 14 – 18, 20
4. Valencia IC, Falabella A, Kirsner RS (2001) Chronic venous insufficiency of venous leg ulceration Journal of American Academy of Dermatology 44:401 – 421.