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PubMed · 15472093

The need to recognize the difference between a quality register and a randomized controlled trial.

Veronica Murray·Eivind Berge·Peter Sandercock·Bo Norrving·Per Wester·Andreas Terént
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Veronica Murray, Eivind Berge, Peter Sandercock, Bo Norrving, Per Wester, Andreas Terént. 2004-10-07. The need to recognize the difference between a quality register and a randomized controlled trial.. https://doi.org/10.1161/01.str.0000144687.45236.a0

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