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. 2010 Jan 13;2(1):1–15. doi: 10.3390/nu20100001

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© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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PCA map of lettuce sample scores. C, conventional samples; K, PetE:KNAT1 samples. K4L, GM samples at 4^th leaf stage; KH, GM samples at the head stage; C4L, control samples at 4^th leaf stage; CH, control samples at the head stage.