Users' Guides to the Medical Literature: XIX. Applying Clinical Trial Results; A. How to Use an Article Measuring the Effect of an Intervention on Surrogate End Points.
Bucher, Heiner C. MD, MPH; Guyatt, Gordon H. MD, MSc; Cook, Deborah J. MD, MSc; Holbrook, Anne MD, MSc; McAlister, Finlay A. MD; for the Evidence-Based Medicine Working Group
282(8):771-778, August 25, 1999.