Guidance Document on the Recognition, Assessment and Use of Clinical Signs as Human Endpoints for Experimental Animals Used in Safety Evaluation

The purpose of this Guidance Document is to apply the principles of the Three Rs to the use of animals in regulatory toxicity tests. The OECD encourages the humane use of animals in regulatory toxicity and safety evaluation studies and fully endorses the principles of the 3Rs, Replacement, Reduction, Refinement.

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