Journal of the National Cancer Institute Advance Access published online on July 29, 2008
JNCI Journal of the National Cancer Institute, doi:10.1093/jnci/djn217
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© The Author 2008. Published by Oxford University Press.
CORRESPONDENCE |
Re: Should Observational Studies Be a Thing of the Past?
Affiliations of author: Department of Epidemiology, University of Washington, Seattle, WA, and the Fred Hutchinson Cancer Research Center, Seattle, WA
Correspondence to: Noel S. Weiss, MD, DrPH, Department of Epidemiology, University of Washington, Box 357236, Seattle, WA 98195 (e-mail: nweiss@u.washington.edu).
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In her editorial, Kathleen Pritchard (1) stated that the results of several randomized trials "clearly provide a definite answer" regarding the influence of hormone replacement therapy (HRT) administered after a diagnosis of breast cancer on the prognosis of women with this disease. The trials to which she referred are the multinational
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J Natl Cancer Inst 2008 100: 1117-1118.