Funding for this research was provided by:
Grant from National Natural Science Foundation of China (81501439)
Grant from Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine (14YJ1)
Received: 6 November 2019
Accepted: 8 June 2020
First Online: 17 June 2020
Ethics approval and consent to participate
: This retrospective study was approved by the institutional review board of Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine, China. The informed consent requirement was waived. The ethics committee’s reference number was XHEC-D-2019-097.
: Informed consent for publication was obtained from all participants.
: The authors declare that they have no competing interests.