Fractional nitric oxide measurement in exhaled air (FeNO): perspectives in the management of respiratory diseases.

"Jaymin Morjaria has received honoraria for speaking and financial support to attend meetings/advisory boards from Wyeth, Chiesi, Pfizer, MSD, Boehringer Ingelheim, Teva, GSK/Allen & Hanburys, Napp, Almirall, AstraZeneca, Trudell, Cook Medical, Medela AG, Medtronics and Novartis. He has been an expert witness in a court case relating to the impact of smoking on illness severity, ITU admissions and mortality from Covid-19 in South Africa in 2020. The entire proceeds of the work were donated to multiple charities. Mario Malerba has received honoraria for speaking and financial support for attending meetings and/or serving on the advisory boards from Chiesi, Astra-Zeneca, GSK, Laboratori Guidotti, Boehringer Ingelheim, Vitalaire, Grifols, CLS Behring. All the authors have no other relevant affiliations of financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed. Jaymin Morjaria is also an Associate Editor of Therapeutic Advances in Chronic Disease; therefore, the peer-review process was managed by alternative members of the Board, and he had no involvement in the decision-making process. Beatrice Ragnoli and Mario Malerba are members of the Editorial Board of Therapeutic Advances in Chronic Disease and had no involvement in the peer review process."

"Funding: The authors received no financial support for the research, authorship, and/or publication of this article."