relaxation 
Sponsors
PLA Rocket Force Characteristic Medical Center, Yantai Yuhuangding Hospital
Conditions
asthmagastroesophageal reflux disease, GERD
Early Phase 1
Systematic research for gastroesophageal flap valve, cardia and esophageal hiatus under endoscopy
RecruitingChiCTR1900025298
Start: 2019-08-16Updated: 2019-09-02
Application of strong relaxation test in the diagnosis of pulmonary function in patients with severe asthma
RecruitingChiCTR1900026680
Start: 2019-10-14Updated: 2019-10-21