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Article History

Received: 3 October 2020

Accepted: 6 May 2021

First Online: 17 May 2021

Declarations

:

: The study was approved by the Institutional Ethical Committee of the Zhangzhou Hospital. The study was based on register data, and individual informed consent from each participant is not required by waiver from the Ethical Committee and national guidelines. All the patient-related information was anonymized. The Hospital Institution authorized the administrative permission to the study team to access the data for research purpose on the nature of public health.

: Not applicable.

: None declared.