Search Results - Fred Shaffer

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  1. 1

    An Overview of Heart Rate Variability Metrics and Norms by Fred Shaffer, J. P. Ginsberg

    Published in Frontiers in Public Health (2017-09-01)
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  2. 2

    Corrigendum: A Practical Guide to Resonance Frequency Assessment for Heart Rate Variability Biofeedback by Fred Shaffer, Zachary M. Meehan

    Published in Frontiers in Neuroscience (2020-12-01)
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  3. 3

    A Critical Review of Ultra-Short-Term Heart Rate Variability Norms Research by Fred Shaffer, Zachary M. Meehan, Christopher L. Zerr

    Published in Frontiers in Neuroscience (2020-11-01)
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