Trial ChiCTR2000029868
Publication Tang W, BMJ, 2020 (published paper)
Dates: 11feb2020 to 29feb2020
Funding: Mixed (Emergent Projects of National Science and Technology; National Natural Science Foundation of China; National Key Research and Development Program of China; Shanghai Municipal Key Clinical Specialty; National Innovative Research Team of High-level Loc)
Conflict of interest: No