References
- Galen R S, Gambino SR. Beyond normality: The predictive value and efficiency of medical diagnosis. John Wiley and Sons, New York, London, Sydney, Toronto 1975
- Riley WJ. Normal values, reference ranges and decision points. Clin Biochem Rev (Australian Association of Clinical Biochemists) 1987; 8: 5–10
- Sackett DL. The usefulness of laboratory tests in health-screening programs. Clin Chem 1973; 19: 366–72