References
1. Burkitt HG, Quick CRG and Gatt D (1999) Essential surgery problems, diagnosis and management. 2nd ed. In: Gallstone diseases and related disorders, pp. 201-220, Edinburgh, UK: Churchill Livingstone.
2. Williams NS, Bulstrode CJK and O’Connell PR (2008) Bailey and Love’s short practice of surgery. 25th ed. In: The gall bladder and bile ducts (ed. Conlon K), pp. 1111-1129, London, UK: Hodder Arnold.
3. Snell RS (2008) Clinical anatomy by regions. 8th ed. In: The abdomen part ii – the abdominal cavity, pp. 201-306, Philadelphia, USA: Wolters Kluwer Health Lippincott Williams & Wilkins.
4. Huang J, Chang CH, Wang JL et al. (2009) Nationwide epidemiological study of severe gallstone disease in Taiwan. BMC Gastroenterology 9 : 63.
5. NDDIC (2012) ERCP (endoscopic retrograde cholangiopancreatography). [online] Available at: http://digestive.niddk.nih.gov/ddiseases/pubs/ercp/#How [Accessed 19 May 2013].
6. U.S. News Health (2009) Gallstones. [online] Available at: < http://health.usnews.com/health-conditions/digestive-disorders/gallstones/treatment> [Accessed 18 May 2013].
7. University of Maryland Medical Center (2011) Gallstones and gallbladder disease- highlights. [online] Available at:<http://www.umm.edu/patiented/articles/gallstones_gallbladder_disease_000010.htm > [Accessed 11 May 2013].
8. NHS choices. Gallstones. [online] Available at: <http://www.nhs.uk/Conditions/Gallstones/Pages/Introduction.aspx> [Accessed 11 May 2013].
9. BSG (2009) Gallstones. [online] Available at: < http://www.bsg.org.uk/patients/general/gallstones.html> [Accessed 11 May 2013].
2. Williams NS, Bulstrode CJK and O’Connell PR (2008) Bailey and Love’s short practice of surgery. 25th ed. In: The gall bladder and bile ducts (ed. Conlon K), pp. 1111-1129, London, UK: Hodder Arnold.
3. Snell RS (2008) Clinical anatomy by regions. 8th ed. In: The abdomen part ii – the abdominal cavity, pp. 201-306, Philadelphia, USA: Wolters Kluwer Health Lippincott Williams & Wilkins.
4. Huang J, Chang CH, Wang JL et al. (2009) Nationwide epidemiological study of severe gallstone disease in Taiwan. BMC Gastroenterology 9 : 63.
5. NDDIC (2012) ERCP (endoscopic retrograde cholangiopancreatography). [online] Available at: http://digestive.niddk.nih.gov/ddiseases/pubs/ercp/#How [Accessed 19 May 2013].
6. U.S. News Health (2009) Gallstones. [online] Available at: < http://health.usnews.com/health-conditions/digestive-disorders/gallstones/treatment> [Accessed 18 May 2013].
7. University of Maryland Medical Center (2011) Gallstones and gallbladder disease- highlights. [online] Available at:<http://www.umm.edu/patiented/articles/gallstones_gallbladder_disease_000010.htm > [Accessed 11 May 2013].
8. NHS choices. Gallstones. [online] Available at: <http://www.nhs.uk/Conditions/Gallstones/Pages/Introduction.aspx> [Accessed 11 May 2013].
9. BSG (2009) Gallstones. [online] Available at: < http://www.bsg.org.uk/patients/general/gallstones.html> [Accessed 11 May 2013].