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Niklas KJ, Cobb ED, Niinemets U, Reich PB, Sellin A, Shipley B, Wright IJ.Niklas KJ, et al.Proc Natl Acad Sci U S A. 2007 May 22;104(21):8891-6. doi: 10.1073/pnas.0701135104. Epub 2007 May 14.Proc Natl Acad Sci U S A. 2007.PMID: 17502616Free PMC article.
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