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- "Control", according to the current [[Declaration of Helsinki]] ethical guides, may or may not involve a [[placebo]]. If there is no acce ...le=Human Experimentation. Code of Ethics of the World Medical Association. Declaration of Helsinki |journal=British Medical Journal |volume=2 |issue=5402 |pages=177 |year=19679 KB (10,925 words) - 14:12, 2 February 2023
- "Control", according to the current [[Declaration of Helsinki]] ethical guides, may or may not involve a [[placebo]]. If there is no acce ...le=Human Experimentation. Code of Ethics of the World Medical Association. Declaration of Helsinki |journal=British Medical Journal |volume=2 |issue=5402 |pages=177 |year=19687 KB (12,105 words) - 14:08, 2 February 2023