by
Katz, David L., 1963-
Format:
Books
Publication Date
2014
Excerpt:
Investigation -- 4.The Study of Risk Factors and Causation -- 5.Common Research Designs and Issues in
by
Aschengrau, Ann.
Format:
Books
Publication Date
2014
Excerpt:
approach to causation -- Screening in public health practice -- Ethics in research involving human
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