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This retrospective cohort study was performed in the Department of Cardiovascular Medicine and Respiratory Medicine of The First Affiliated Hospital of Xi’an Jiaotong University. The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethics Committee of The First Affiliated Hospital of Xi’an Jiaotong University (No. XJTU1AF2020LSK-187). Written informed consents were obtained from the patients or their family members prior to the use of their anonymized clinical data.

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