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Thom, S., Whitehouse, A., Sever, P. et al. Non-specific effects of inclusion in a clinical trial: information from ASCOT. J Hum Hypertens 15 (Suppl 1), S81–S82 (2001). https://doi.org/10.1038/sj.jhh.1001092
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DOI: https://doi.org/10.1038/sj.jhh.1001092