Wen, Jing
Pan, Tao
Yuan, Yun-chuan
Huang, Qiu-shi
Shen, Jian
Article History
Received: 25 April 2021
Accepted: 25 June 2021
First Online: 8 July 2021
Declarations
:
: This study was based on the information gathered from the database of Chengdu Second People’s Hospital. The establishment of this database was approved by the Research Ethics Committee of the hospital. Informed consent individual patients were waived because of the retrospective nature of the analysis.
: Not applicable.
: The authors declare that they have no competing interests.