26
Participants
Start Date
March 31, 2025
Primary Completion Date
January 31, 2026
Study Completion Date
March 31, 2026
USN before SVN
The group that received ultrasonic rock salt aerosol inhalation therapy followed by small-volume nebulized inhalation therapy.
SVN before USN
The group that received small-volume nebulized inhalation therapy followed by ultrasonic rock salt aerosol inhalation therapy.
China-Japan Friendship Hospital, Beijing
Jingen Xia
OTHER