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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Exp Gerontol. 2007 Dec 15;43(4):296–306. doi: 10.1016/j.exger.2007.12.005

Figure 1.

Figure 1

Representative electrocardiograms (ECGs) in lead II recorded from lightly anesthetized adult (A; n=27) and senescent (B; n=26) mice. Senescence increased the PR and QRS intervals and decreased R amplitude (C).