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  • Evaluation of the diagnostic accuracy of fractional exhaled nitric oxide (FeNO) in patients with suspected asthma: study protocol for a prospective diagnostic study

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Respiratory medicine
Protocol
Evaluation of the diagnostic accuracy of fractional exhaled nitric oxide (FeNO) in patients with suspected asthma: study protocol for a prospective diagnostic study

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Kellerer C, Hapfelmeier A, Jörres RA, et al
Evaluation of the diagnostic accuracy of fractional exhaled nitric oxide (FeNO) in patients with suspected asthma: study protocol for a prospective diagnostic study
BMJ Open 2021;11:e045420. doi: 10.1136/bmjopen-2020-045420