62
Participants
Start Date
August 1, 2020
Primary Completion Date
October 31, 2022
Study Completion Date
October 31, 2022
Oxygen
Oxygen and standard therapy were given
Ozone
Ozone and standard therapy were given
Standard therapy
Best standard of care
Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou
The First Affiliated Hospital of Zhengzhou University
OTHER