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American Journal of Epidemiology Advance Access originally published online on April 9, 2007
American Journal of Epidemiology 2007 165(10):1219; doi:10.1093/aje/kwm081
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American Journal of Epidemiology Copyright © 2007 by the Johns Hopkins Bloomberg School of Public Health All rights reserved; printed in U.S.A.

LETTERS TO THE EDITOR

RE: "BIAS IN CLINICAL INTERVENTION RESEARCH"

Harri Hemilä

Department of Public Health, University of Helsinki, FIN-00014, Finland

(e-mail: harri.hemila@helsinki.fi)

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In her Journal review discussing the potential biases of controlled trials, Gluud stated that "[t]he purpose of blinding is to prevent bias associated with patients' and investigators' expectations. If interventions are compared with no intervention, an identical placebo may be used. The compared . . . [Full Text of this Article]


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This article has been cited by other articles:


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 Am J EpidemiolHome page
M. Marmor, I. Belitskaya-Levy, and A. A. Arslan
RE: LETTER TO THE EDITOR ON "BIAS IN CLINICAL INTERVENTION RESEARCH"
Am. J. Epidemiol., February 15, 2008; 167(4): 500 - 501.
[Full Text] [PDF]

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 Am J EpidemiolHome page
H. Hemila
THE AUTHOR REPLIES
Am. J. Epidemiol., February 15, 2008; 167(4): 501 - 502.
[Full Text] [PDF]

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 Am J EpidemiolHome page
L. L. Gluud
THE AUTHOR REPLIES
Am. J. Epidemiol., May 15, 2007; 165(10): 1219 - 1220.
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