Heart rate variability and its correlation with pulmonary function test of smokers.

Heart Views · 2013 · PMC3621220 · PMID 23580921

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highly significantno p-value reported

The mean FEV 1 /FVC, MFEF 25-75, PEFR, and MVV in the control group were higher than those in the test group and the difference was statistically very highly significant.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.