Reference record
Multiple-Center Retrospective Study of Severe and Critical COVID-19 in Shanghai
Ruijin Hospital
First Published (first received 2022 June 20)ClinicalTrials.gov (https://clinicaltrials.gov/show/NCT05422963)
Trial registry recordNo Results
This study is to clarify the clinical characteristics of severe and critical COVID-19 from
March 1st ,2022 to June 9th, 2022 in Shanghai and to explore the relationship between the
characteristics and prognosis in these patients