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Comment
. 2008 Aug 6;100(15):1117; author reply 1117-8.
doi: 10.1093/jnci/djn217. Epub 2008 Jul 29.

Re: Should observational studies be a thing of the past?

Noel S Weiss
Comment

Re: Should observational studies be a thing of the past?

Noel S Weiss. J Natl Cancer Inst. .
No abstract available

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