Heart-rate variability: Time domain analysis.
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Values are median (25 percentile-75 percentile).Mean NN: mean normal-to-normal, SDNN: Standard deviation of NN; RMSSD: Square root of the mean squared difference of successive NN-intervals; pNN50: Percent of differences between adjacent NN intervals greater than 50 ms.Statistical comparison was performed by Mann-Whitney test.
创建时间：
2015-12-02
