1. Sequential medical trials;Anscombe;Journal of the American Statistical Association,1963
2. Restricted sequential procedures;Armitage;Biometrika,1957
3. Statistical problems in a mass screening program;Armitage;Annals of the New York Academy of Science,1958
4. Repeated significance tests on accumulating data;Armitage;Journal of the Royal Statistical Society, Series A,1969
5. The efficacy of modified oral penicillin therapy of pneumococcal lobar pneumonia;Austrian;Bulletin of Johns Hopkins Hospital,1951