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R J Hayes

JAMA

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JAMA|February 1, 1995

Empirical evidence of bias. Dimensions of methodological quality associated with estimates of treatment effects in controlled trialsK F Schulz, I Chalmers, R J Hayes, et al.

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Search research articles

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JAMA|February 1, 1995

Empirical evidence of bias. Dimensions of methodological quality associated with estimates of treatment effects in controlled trialsK F Schulz, I Chalmers, R J Hayes, et al.

Pageof 1