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Embryology policy: Revisit the 14-day rule

Studies of human development in vitro are on a collision course with an international policy that limits embryo research to the first two weeks of development, warn Insoo Hyun, Amy Wilkerson and Josephine Johnston.

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Correspondence to Insoo Hyun.

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Hyun, I., Wilkerson, A. & Johnston, J. Embryology policy: Revisit the 14-day rule. Nature 533, 169–171 (2016). https://doi.org/10.1038/533169a

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