“Echocardiographic assessment of pulmonary hypertension: standard operating procedure.” Luke S. Howard, Julia Grapsa, David Dawson, Michael Bellamy, John B. Chambers, Navroz D. Masani, Petros Nihoyannopoulos and J. Simon R. Gibbs. Eur Respir Rev 2012; 12…
Unfortunately, the position of the S' wave was incorrectly indicated in figure 4a in the manuscript above. The corrected figure is presented below. The authors apologise for this error.
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