References
- Lachin J M. Statistical inference in clinical trials. The Randomized Clinical Trial and Therapeutic Decisions, N Tygstrup, J M Lachin, E Juhl. Dekker, New York 1982; 117–143, This reference provides a table with the several different formulae for sample size calculation mentioned above
- Medical Epidemiology, R S Greenberg. Appleton & Lange, Norwalk, CT 1993; 136, see Appendix B
- Freiman J A, Chalmers T C, Smith H, Kuebler R. The importance of beta, the type II error and sample size in the design and interpretation of the randomized controlled trial. N Engl J Med 1978; 299: 690–694
- Simel D L, Samsa G P, Matchar D B. Likelihood ratios with confidence: sample size estimation for diagnostic test studies. J Clin Epidemiol 1991; 44: 763–770
- Feinstein A R. Invidious comparisons and unmet clinical challanges. Am J Med 1992; 92: 117–120