by
Magnus, Manya, author.
Format:
Books
Publication Date
2016
Excerpt:
-sectional study and introduction to sampling -- Applied analytic approaches -- Confounding and interaction
by
Margetts, Barrie M.
Format:
Books
Publication Date
1997
Excerpt:
Barrie M. Margetts. 3. Sampling, study size, and power / Tim J. Cole. 4. Covariate measurement errors in
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