Practice guidelines for acute pain management in the perioperative setting: an updated report by the American Society of Anesthesiologists Task Force on Acute Pain Management. Anesthesiology 2012 Feb;116(2):248-273.
Worldwide trends in the Human Development Index [accessed 2011 Mar 14]. Available from: http://hdr.undp.org/en/statistics/hdi.
Report of the Working Party on Pain after Surgery. London: Royal College of Surgeons; 1990.
Acute postoperative pain. Indian J Anaesth 2006; 50(5):40-44.
Postoperative pain services. Indian J Anaesth 2005; 49(1):17-19.
Cultural aspects of pain in childbearing women. J Obstet Gynaecol Neonatal Nurs 1996 Jan;25(1):67-72.
Quality of pain management in the emergency department: results of a multicentre prospective study. Eur J Anaesthesiol 2011 Feb;28(2):97-105.
Pain prevalence and pain relief in trauma patients in the Accident and Emergency department. Injury 2008 May;39(5):578-585.