1. ANZCA (Australian and New Zealand College of Anaesthetists) 2010 Acute Pain Management: Scientific Evidence 3rd edn Canberra Australian and New Zealand College of Anaesthetists and Faculty of Pain Medicine http://www.anzca.edu.au/resources/books-and-publications/Acute%20pain%20management%20-%20scientific%20evidence%20-%20third%20edition.pdf
2. Bandolier 2007 Oxford League Table of Analgesics in Acute Pain http://www.medicine.ox.ac.uk/bandolier/booth/painpag/Acutrev/Analgesics/Leagtab.html
3. Diagnosis and assessment of neuropathic pain: The saga of clinical tools;Bouhassira;Pain,2011
4. Pathophysiology of postoperative pain;Brennan;Pain,2011
5. Understanding the experience and physiology of pain;Briggs;Nursing Standard,2010