120
Participants
Start Date
December 11, 2018
Primary Completion Date
July 24, 2021
Study Completion Date
October 31, 2021
test strips,sponges and cold dry air test
Test strips were used to evaluated the degree of dry nose, sponges were used to obtain the nasal secretion and cold dry air test was used to making diagnosis of vasomotor rihinitis.
Yifan Meng, Beijing
Beijing Tongren Hospital
OTHER