References
- Armitage P, Berry G. Statistical methods in medical research. Blackwell, Oxford 1987
- The Cardiac Arrhythmia Suppression Trial (CAST) Investigators. Preliminary report: effect of encainide and flecainide on mortality in a randomized trial of arrhythmia suppression after myocardial infarction. N Engl J Med 1989; 321: 406–412
- Slevin M L, Stubbs L, Plant H J, Wilson P, Gregory W M, Armes P J, Downer S M. Attitudes to chemotherapy: comparing views of patients with cancer with those of doctors, nurses, and general public. Br Med J 1990; 300: 1458–1460
- Nordic Medical Research Councils' HIV Therapy Study Group. Double‐blind dose‐response study of zidovudine in serious HIV infection and AIDS. Sixth Int Conference on AIDS, abstract S. B. 451, San Francisco, June, 20–241990
- Dournon E, Matheron S, Rozenbaum W, Gharakhanian S, Michon C, Girard P M, Perrone C, Salmon D, de Truchis P, Leport C, Bouvet E, Dazza M C, Levacher M, Regnier B. Effects of zidovudine in 365 consecutive patients with AIDS or AIDS‐related complex. Lancet 1988; 2: 1297–1302
- Andersen P K. Conditional power calculations as an aid in the decision whether to continue a clinical trial. Controlled Clin Trials 1987; 8: 67–74