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Eur J Clin Invest 2011; 41 (10): 1063–1070
AbstractBackground Nasal nitric oxide (nNO) is assessed by nasal aspiration/insufflation via one nostril or by nasal silent exhalation through a facemask and is also measured during humming, a manoeuvre that results in increased nNO in the presence of a patent osteomeatal complex. Humming nNO peak is absent in primary ciliary dyskinesia (PCD) and in cystic...
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