Funding for this research was provided by:
Shandong Provincial Natural Science Foundation (ZR2015HM074))
Shandong Provincial Key Research and Development Plan (2016GSF201014)
Shandong University Horizontal Research Project (6010119023)
Shandong Provincial Medical and Health Science and Technology Development Plan (2016QLQN01)
Received: 24 October 2020
Accepted: 19 April 2021
First Online: 27 April 2021
: This retrospective study has been approved by the institutional review board at Qilu Hospital of Shandong University.
: All patients consented to publish their data.
: The authors declare they have no conflicts of interests.