Are treatments more effective than placebos? A systematic review and meta-analysis.

<p><strong>Background.</strong> Placebos are widely used in clinical practice in spite of ethical restrictions. Whether such use is justified depends in part on the relative benefit of placebos compared to ‘active’ treatments. A direct test for differences between placebo and ‘acti...

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Detalhes bibliográficos
Principais autores: Howick, J, Friedemann, C, Tsakok, M, Watson, R, Tsakok, T, Thomas, J, Perera, R, Fleming, S, Heneghan, C
Formato: Journal article
Idioma:English
Publicado em: Public Library of Science 2013