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. 2014 Mar 20;2(3):e00257. doi: 10.1002/phy2.257

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© 2014 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Left ventricular inner diameters (LVID) (A) at diastole and systole increase with age, but are not affected by genotype (A). Fractional shortening (FS) (B), a measure of systolic function, is not affected by genotype. n = 11–20 per group.