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. 2012 May 1;10(5):e1001318. doi: 10.1371/journal.pbio.1001318

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Frenzel 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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For both baroreflex traits—baroreflex sequence slope (A) and baroreflex sequence frequency (B)—the cross-twin correlations were higher in MZ than in DZ twins. Significant heritability estimates could be calculated. r, intra-class correlation; h², heritability estimate; 95% confidence interval in brackets; AE, preferred model used to estimate heritability.