Heart rate variability (HRV) is a known risk factor for mortality in both healthy and patient populations. There are currently no normative data for short-term measures of HRV. A thorough review of ...
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Why normal range doesn't always mean healthy on your lab results
Why “normal range” doesn’t always mean healthy on your lab results Your doctor says everything looks fine, but you still feel ...
n/a = nonapplicable; SD = standard deviation; CV = coefficient of variation (SD/mean × 100); mRR = mean RR interval; SDNN = standard deviation of normal-to-normal intervals; rMSSD = root mean square ...
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