SOURCE- Surgical Outcomes Research Centre at McMaster University has published a series of articles in the Canadian Journal of Surgery called the Users' Guide to the Surgical Literature. The various chapters are linked below.
Mohit Bhandari, MD, MSc; P.J. Devereaux, MD; Victor Montori, MD, MSc; Claudio Cinà, MD, MSc;Ved Tandan, MD, MSc; Gordon H. Guyatt, MD, MSc; for the Evidence-Based Surgery Working Group. Can J Surg, February 2004;47(1):60.