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. 2008 Aug 6;3(8):e2865. doi: 10.1371/journal.pone.0002865

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Xu et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Grip strength in CR rats declined significantly at 37 months of age, while it decreased significantly at 29 months of age in AL rats, yet more pronounced in advanced age of 37 months. Values are means±SEM (n = 7–8). ^a,b,cDifferent letters indicate values are significantly different (p<0.05 by Tukey's Multiple Comparison Test).