August 23, 2011 article Open access Block urn design — A new randomization algorithm for sequential trials with two or more treatments and balanced or unbalanced allocation Contemporary Clinical Trials DOI: 10.1016/j.cct.2011.08.004 Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 3 stored of 74 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 Randomization in the age of platform trials: unexplored challenges and some potential solutions 2025 BMC Medical Research Methodology article Mathematics Statistical Methods in Clinical Trials Open access 3 citations A roadmap to using randomization in clinical trials 2021 BMC Medical Research Methodology article Mathematics Statistical Methods in Clinical Trials Open access 138 citations A roadmap to using randomization in clinical trials 2021 Research Square preprint Mathematics Statistical Methods in Clinical Trials Open access 1 citations 3 results References 0