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Pico: Written Informed Consent and Selection Bias in Observational Studies Using Medical Records: Systematic Review
Michelle E. Kho, Mark Duffett, Donald J. Willison, Deborah J. Cook and Melissa C. Brouwers
BMJ: British Medical Journal
Vol. 338, No. 7698 (Apr. 4, 2009), p. 822
Published by: BMJ
Stable URL: http://www.jstor.org/stable/20512543
Page Count: 1
You can always find the topics here!Topics: Observational studies, Medical records, Informed consent, Health outcomes, Selection bias, Universities, Research ethics, Age, Health status
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