Readers guide to critical appraisal of cohort studies: 3. Analytical strategies to reduce confounding.

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Published in BMJ on April 30, 2005

Authors

Sharon-Lise T Normand1, Kathy Sykora, Ping Li, Muhammad Mamdani, Paula A Rochon, Geoffrey M Anderson

Author Affiliations

1: Department of Health Care Policy, Harvard Medical School, Boston, MA, USA.

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