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Sample size and statistical power in clinical orthopaedic research.
Freedman KB, Bernstein J. Freedman KB, et al. Among authors: bernstein j. J Bone Joint Surg Am. 1999 Oct;81(10):1454-60. doi: 10.2106/00004623-199910000-00011. J Bone Joint Surg Am. 1999. PMID: 10535596 Review. No abstract available.
2,400 results