Diagnostic value of the pepsin concentration in saliva and induced sputum for gastroesophageal reflux-induced chronic cough: a prospective clinical study.
Wenhua GuWei ChenTongyangzi ZhangYiqing ZhuWanzhen LiWenbo ShiNa LiShengyuan WangXianghuai XuLi YuPublished in: ERJ open research (2024)
is of good diagnostic value for GERC, especially in non-acidic GERC. The pepsin concentration in induced sputum has a low diagnostic value.