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Blinding trials

Published online by Cambridge University Press:  03 January 2018

Duncan Double*
Affiliation:
University of Sheffield Northern General Hospital Sheffield S5 7AU
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Abstract

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Type
Correspondence
Copyright
Copyright © Royal College of Psychiatrists, 1991 

References

Hollyman, J. A., Freeling, P., Paykel, E. S., et al (1988) Double-blind placebo-controlled trial of amitriptyline among depressed patients in general practice. Journal of the Royal College of General Practitioners, 38, 393397.Google ScholarPubMed
Karlowski, T. R., Chalmers, T. C., Frenkel, L. D., et al (1975). Ascorbic acid for the common cold. Journal of the American Medical Association, 231, 10381042.CrossRefGoogle ScholarPubMed
Pauling, L. (1970) Vitamin C and the Common Cold. San Francisco: Freeman.Google Scholar
Porter, A. M. W. (1970) Depressive illness in a general practice. A demographic study and a controlled trial of imipramine. British Medical Journal, i, 773778.Google Scholar
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