30
Participants
Start Date
November 30, 2014
Primary Completion Date
December 31, 2015
Study Completion Date
December 31, 2015
CPAP level
CPAP level ranges between 4 and 12 cm water column (cmH2O), each pressure increment for 1 cmH2O.
Zhujiang Hospital,Southern Medical Universtiy, Guangzhou
Guangzhou Institute of Respiratory Disease
OTHER
Zhujiang Hospital
OTHER