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Comment
. 2008 Jun 30;27(14):2740-1; author reply 2741-2.
doi: 10.1002/sim.3172.

Re: The design versus the analysis of observational studies for causal effects: parallels with the design of randomized trials

Comment

Re: The design versus the analysis of observational studies for causal effects: parallels with the design of randomized trials

Ian Shrier. Stat Med. .
No abstract available

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