Funding for this research was provided by:
Ningbo medical and health brand discipline (PPXK2018-03, PPXK2018-03, PPXK2018-03, PPXK2018-03, PPXK2018-03)
Science and Technology program of Zhejiang Health (2021KY1035, 2021KY1035)
Medical Health Science and Technology Project of Zhejiang Province (2019ZD047, 2019ZD047, 2019ZD047)
Received: 5 September 2021
Accepted: 28 February 2022
First Online: 7 March 2022
: This study is in accordance with the Declaration of Helsinki and has been approved by the ethical committee of Ningbo Medical Center Lihuili Hospital, Ningbo University. The study is retrospective cohort study and only clinical information of patients will be collected without interfering with patients’ treatment plans or posing physiological risks to patients. All research procedures were in compliance with the relevant guideline and regulations. Informed consent was obtained from all patients prior to being included.
: Not applicable.
: The authors declare that they have no competing interests.