1. Kipling R. If. In: Kipling R (ed) Gunga Din and Other Favorite Poems. New York, Dover, 1990:59
2. Leach DC. Building and Assessing Physician Competence. Presentation at the University of Minnesota Medical School and the Metro Minnesota Council on Graduate Medical Education, University of Minnesota, Minneapolis. MN 2003;January:7
3. Dreyfus H, On the internet. New York, Routledge Press, 2001
4. Altman G, Burton M. The Cochrane Collaboration. Arch Surg 1999;384:432–6
5. Arya J, Wolford H, Harken AH. Evidence-based science: a worthwhile mode of surgical inquiry. Arch Surg 2002; 137:1301–3