1. Hackett R. Dunning’s examination of torsos is a truly navel experience. Seattle Post-Intelligencer, Seattle, 30 May 2002.
2. Terfera D, Jegtvig S. Nerves, blood vessels, and lymphatics of the abdomen. New Jersey: Wiley; 2012. p. 110.
3. Auplish S, Hossain-Ibrahim MK. Extended matching questions for the MRCS. Cambridge: Cambridge University Press; 2001. p. 33.
4. Baburaj P. Hari’s essentials of clinical medicine. New Delhi: Jaypee Brothers Publishers; 2008. p. 205.
5. Hill MA. Embryology book – human embryology and morphology 8. UNSW Cricos, Sydney, 2015. https://embryology.med.unsw.edu.au/embryology/index.php/Main_Page . Accessed 8 Feb 16.