1. How big a difference makes a difference? Delta boundaries for “quantitative significance”;Burnand;Clin Res,1988
2. The limited spectrum of patients studied in exercise test research. Analyzing the tip of the iceberg;Philbrick;JAMA,1982
3. Clinical Decision Analysis;Weinstein,1980
4. Clinical Epidemiology. A Basic Science for Clinical Medicine.;Sackett,1985
5. Problems of spectrum and bias in evaluating the efficacy of diagnostic tests;Ransohoff;N Engl J Med,1978