Zhang, Jianwei
He, Lingjie
Article History
Received: 2 January 2021
Accepted: 30 March 2021
First Online: 12 April 2021
Declarations
:
: The retrospective cohort study was conducted in accordance with the Declaration of Helsinki and was approved by the Anzhen Hospital Institutional Ethical Review Board with a waiver of informed consent. Information related to the identity of the patient was concealed.
: Not applicable.
: The authors declare no competing interests.