Resumo

TEMPONE PEREZ, S. G.. The placebo in medical practice and research. An. Med. Interna (Madrid) [online]. 2007, vol.24, n.5, pp.249-252. ISSN 0212-7199.

The placebo is a therapeutics tool well known since the antiquity. It is used in clinical practice and research. In this article I have define the concept and resume the guidelines for its use in clinical research.

Palavras-chave : Placebo; Clinical research; Ethics.

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