Oxford Handbook of Key Clinical Evidence. Eds. Harrison, James, Kunal Kulkarni, Mohamed Baguneid, and Bernard Prendergast. New York, NY: Oxford University Press, 2009-09-24. Oxford Medicine. 201008. Date Accessed 23 May. 2013 <http://oxfordmedicine.com/view/10.1093/med/9780199234073.001.0001/med-9780199234073>.
(2009-09-24). Harrison, J., Kulkarni, K., Baguneid, M., & Prendergast, B.(Eds.), Oxford Handbook of Key Clinical Evidence. New York, NY: Oxford University Press. Retrieved 23 May. 2013, from http://oxfordmedicine.com/view/10.1093/med/9780199234073.001.0001/med-9780199234073.
Oxford Handbook of Key Clinical Evidence, edited by Harrison, James, Kunal Kulkarni, Mohamed Baguneid, and Bernard Prendergast. New York, NY: Oxford University Press, 2009-09-24. http://oxfordmedicine.com/view/10.1093/med/9780199234073.001.0001/med-9780199234073.
Harrison J, Kulkarni K, Baguneid M, Prendergast B, eds. Oxford Handbook of Key Clinical Evidence. New York, NY: Oxford University Press; 2009. http://oxfordmedicine.com/view/10.1093/med/9780199234073.001.0001/med-9780199234073. Accessed May 23, 2013.