February 09, 1991 article Open access Confidence intervals and sample sizes: don't throw out all your old sample size tables. BMJ DOI: 10.1136/bmj.302.6772.333 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 1 stored of 36 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access On sample size calculation in drug interaction trials 2024 Pharmaceutical Statistics article Mathematics Statistical Methods in Clinical Trials Open access 2 citations 1 result References 0