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Read-Across, Grouping and Categories: possibilities and ... - Europa

Read-Across, Grouping and Categories: possibilities and ... - Europa

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Groups <strong>and</strong> <strong>Categories</strong> (4)• <strong>Read</strong>-across is strengthened when the responsesof source chemicals in a group point in the samedirection, while it is obviously weakened if thesource chemicals point to different directions.• Many-to-one read-across is better practicethan one-to-many.• The number of targets that can be covered by onesource depends on the strength of the readacross.29/02/2012 11

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