Diagnostic value of echocardiography in the diagnosis of pulmonary hypertension.

PLoS One · 2012 · PMC3369879 · PMID 22685577

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highly significantno p-value reported

Interestingly, in this study RV free wall longitudinal strain values was highly significant correlated with changes in 6 minute walking distance [14] .

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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.