A comparative study on the value of lower airway exhaled nitric oxide combined with small airway parameters for diagnosing cough-variant asthma.
Haodong BaiCuiqin ShiSue YuSiwan WenBingxian ShaXianghuai XuLi YuPublished in: Therapeutic advances in respiratory disease (2023)
> 11 ppb contributed strongly for differentiating CVA from chronic cough, especially in patients with small airway dysfunction.