HIGHLIGHTS
- who: Se Ju Lee from the The Institutional Review Board of the Yonsei University Health System Clinical Trial Centre approved this study on , May , (4-2021-0510)Because the study was retrospective and the data were anonymized, the IRB waived the requirement for informed consent. Variables and definitions have published the research work: Risk factors of pneumothorax and pneumomediastinum in COVID-19: a matched case-control study, in the Journal: (JOURNAL) of January/31,/2022
- what: The aim of this matched case-control study was to identify the risk factors and clinical characteristics of PNX . . .
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