Effectiveness of proton pump inhibitor in unexplained chronic cough.
Hye Jung ParkYoo Mi ParkJie-Hyun KimHye Sun LeeHyung Jung KimChul Min AhnMin-Kwang ByunPublished in: PloS one (2017)
ClinicalTrial.gov NCT01888549 www.clinicaltrials.gov; cris.nih.go.kr KCT0000543 cris.nih.go.kr/.