1. Mork F 2009 Cutaneous ulcers, sinuses and fistulae In Badoe EA, Archampong EQ, da Rocha-Afodu JT editors Principles and Practice of Surgery Including Pathology in the Tropics Fourth Edition Accra: Assemblies of God Literature Centre Ltd:70-82.
2. Barbul A, Efron TD, Kavalukas SL 2015 Wound healing In Brunicardi FC, Andersen DK, Billiar TR, Dunn DL, Hunter JG, Matthews JB, Pollock RE editors Schwartz's Principles of Surgery Tenth Edition New York NY: McGrawhill:241-72.
3. Burnand K 2008 Venous disorders In Williams NS, Bulstrode CJK, O'Connell PR editors Bailey & Love's Short Practice of Surgery 25th Edition London: Hodder Arnold:925-43.
4. Baker SR, Stacey MC, Jopp-Mckay AG, Hoskin SE, Thompson PJ 1991 Epidemiology of chronic venous ulcers. Br J Surg 78(7):864-7.
5. Sarkar PK, Ballantyne S 2000 Management of leg ulcers Postgrad Med J 76(901):674-682.