1. Statistics and ethics in medical research;ALTMAN, D.;British Medical Journal,1980
2. Sequential Medical Trials;ARMITAGE, P.,1960
3. Repeated significance tests on accumulating data;ARMITAGE, P.; McPHERSON, C.K.; ROWE, B.C.;Journal of the Royal Statistical Society, Series A,1969
4. Sequential Medical Trials;ARMITAGE, P.,1975
5. An approach to the treatment evaluation of Hodgkin's disease;ASPDEN, P.; SUTCLIFFE, S.B.J.; TIMOTHY, A.R.; JACKSON, R.R.P.;Omega,1981