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letter . 1997 Jul 26;315(7102):253.
Informed consent. Two stage randomisation and consent would overcome many problems.
D J Stott
, P Langhorne
, H Rodgers
D J Stott
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P Langhorne
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H Rodgers
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PMCID: PMC2127142 PMID: 9253294
See the article "Evaluation of a stroke family care worker: results of a randomised controlled trial." in volume 314 on page 1071.