Placebo -- Placebo
A chemically inert substance given in the guise of medicine for its psychologically suggestive effect. Placebos are used in controlled clinical trials to determine whether improvement and side effects may reflect imagination or anticipation rather than actual power of a drug.
NEBRA: Networking for Ethics on Biomedical Research in Africa, Presentation of the NEBRA Project - nebra-booklet (english) p. 15

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