Unwarranted variations in context
Bernal-Delgado E, García-Armesto S, Peiró-Moreno S. Unwarranted variations in context . British Medical Journal 2011. 2011, Vol. 342: d1849 (letter), p. -2011.
URL:
http://www.bmj.com/content/342/bmj.d1513?tab=responses