Requirement of second species testing for evaluating developmental toxicity potential

Over the last decade, there has been ongoing debate on the regulatory requirement of a second-species testing requirement to identify developmental toxicity. A recent article by Braakhuis et al. (2019) has questioned the reproducibility of developmental toxicity results and the comparison approach using NOAELs. The current insight attempts to present the state-of-the-art information on the ongoing discussion.
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