1. Guidelines for Safe Surgery. World Health Organisation; 2009. Available from: http://whqlibdoc.who.int/publications/2009/9789241598552_eng.pdf . Accessed date:09/12/2014.
2. Surgical Safety Checklist National Patient Safety Agency; 2009. Available from: http://www.nrls.npsa.nhs.uk/resources/clinical-specialty/surgery/?entryid45=59860 . Accessed date:09/12/2014.
3. Robinson PM, Muir LT. Wrong-site surgery in orthopaedics. J Bone Joint Surg Br. 2009;91(10):1274–80.
4. CG74 Surgical site infection: full guideline. National Institute for Health and Care Excellence; 2008. Available from: http://www.nice.org.uk/CG74fullguideline . Accessed date:15/1/2015.
5. Tatla T, Lafferty K. Making your mark again in surgery. Ann R Coll Surg Engl. 2002;84(2):129–30.