Cheng, Daniel Tsai, Shih-Jen Hong, Chen-Jee C. Yang, Albert Heart-rate variability characteristics. <p>Values are mean ± standard deviation unless otherwise noted.</p><p>Power spectral estimates were log transformed due to skewed distributions. F ratios from analyses of covariance, controlling for age and clinical parameters.</p> variability 2013-02-21
    https://plos.figshare.com/articles/dataset/_Heart_rate_variability_characteristics_/547685
10.1371/journal.pone.0007733.t002