He, Zhongyuan
Zhou, Kai
Tang, Ke
Quan, Zhengxue
Liu, Shaoyu
Su, Bao
Article History
Received: 27 April 2020
Accepted: 28 October 2020
First Online: 17 November 2020
Ethics approval and consent to participate
: This study is a retrospective clinical study and has been approved by The First Affiliated Hospital of Chongqing Medical University Ethics Committee. All patients had signed the consent form.
: Not applicable.
: The authors declare that they have no competing interests.