Core Outcome Set for Clinical Trials on Coronavirus Disease 2019 (COS-COVID)
Since its outbreak in December 2019, a series of clinical trials on coronavirus disease 2019 (COVID-19) have been registered or carried out.However, the significant heterogeneity and less critical outcomes of such trials may be leading to a waste of research resources.This study aimed to develop a core outcome set tillman 750m (COS) for clinical tr