Underpowered studies
Author:
Affiliation:
1. Department of Public Health and Epidemiology, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Publisher
Oxford University Press (OUP)
Subject
Surgery
Link
http://academic.oup.com/bjs/article-pdf/89/2/129/36725511/bjs179.pdf
Reference13 articles.
1. Statistics and ethics in medical research III. How large a sample?;Altman;BMJ,1980
2. Assessing the quality of randomized controlled trials. Current issues and future directions;Moher;Int J Technol Assess Health Care,1996
3. Empirical evidence of bias. Dimensions of methodological quality associated with estimates of treatment effects in controlled trials;Schulz;JAMA,1995
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