Funding for this research was provided by:
National Natural Science Foundation of China (81802492)
Young and Middle-aged Backbone Key Research Project of National Health and Family Planning Commission of Fujian Province (2017-ZQN-46)
Natural Science Foundation of Fujian Province (2018J01175)
Natural Science Funding of Fujian Province (2018J01176)
Article History
Received: 28 November 2020
Accepted: 3 February 2021
First Online: 20 February 2021
Declarations
:
: The authors have no financial or proprietary interests in any material discussed in this article
: This retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Human Investigation Committee (IRB) of First Affiliated Hospital of Fujian Medical University approved this study.
: Our study was approved by the institutional review board, which waived informed consent because it was retrospective