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Journal of the National Cancer Institute Advance Access originally published online on March 25, 2008
JNCI Journal of the National Cancer Institute 2008 100(7):451-452; doi:10.1093/jnci/djn074
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© The Author 2008. Published by Oxford University Press.

EDITORIALS

Should Observational Studies Be a Thing of the Past?

Kathleen I. Pritchard

Affiliation of author: Division of Medical Oncology, Sunnybrook Odette Cancer Centre, Toronto, ON, Canada

Correspondence to: Kathleen I. Pritchard, MD, FRCPC, Division of Medical Oncology, Sunnybrook Odette Cancer Centre, 2075 Bayview Ave, T2-185, Toronto, ON M4N 3M5, Canada (e-mail: kathy.pritchard@sunnybrook.ca).

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Holmberg et al. (1) have presented, in this issue of the Journal, updated follow-up on their randomized HABITS (Hormonal Replacement Therapy After Breast Cancer—Is it Safe?) trial of the use of hormone replacement therapy (HRT) in breast cancer survivors. This topic has been extremely controversial. Before the initial publication of the HABITS trial (2), the only available data concerning the use of HRT in breast cancer survivors came from a series of observational studies and clinical case series, the results of which suggested that this practice was safe (3). A small, underpowered randomized trial also . . . [Full Text of this Article]


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Correspondence about this Article

Re: Should Observational Studies Be a Thing of the Past?
Noel S. Weiss
J Natl Cancer Inst 2008 100: 1117. [Extract] [Full Text] [PDF]

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Increased Risk of Recurrence After Hormone Replacement Therapy in Breast Cancer Survivors
Lars Holmberg, Ole-Erik Iversen, Carl Magnus Rudenstam, Mats Hammar, Eero Kumpulainen, Janusz Jaskiewicz, Jacek Jassem, Daria Dobaczewska, Hans E. Fjosne, Octavio Peralta, Rodrigo Arriagada, Marit Holmqvist, and Johanna Maenpa On behalf of the HABITS Study Group
J Natl Cancer Inst 2008 100: 475-482. [Abstract] [Full Text] [PDF]

IN THIS ISSUE
J Natl Cancer Inst 2008 100: 447. [Extract] [Full Text] [PDF]



This article has been cited by other articles:


Home page
 JNCI J Natl Cancer InstHome page
N. S. Weiss
Re: Should Observational Studies Be a Thing of the Past?
J Natl Cancer Inst, August 6, 2008; 100(15): 1117 - 1117.
[Full Text] [PDF]

Home page
 Menopause IntHome page
S. Brown
HABITS trial results confirmed in two-year follow-up
Menopause Int, June 1, 2008; 14(2): 48 - 51.
[Full Text] [PDF]

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 JWatch GeneralHome page
Hormone Therapy in Breast Cancer Survivors
Journal Watch (General), April 24, 2008; 2008(424): 2 - 2.
[Full Text]