Huang, Xinmei
Bao, Liyan
Tang, Xuxia
Shen, Jun
Ni, Xupei
Shen, Yanfei http://orcid.org/0000-0002-6752-2829
Funding for this research was provided by:
natural science foundation of Zhejiang Province (Y17H130009)
Article History
Received: 11 June 2019
Revised: 4 October 2019
Accepted: 8 October 2019
First Online: 18 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval was obtained in the original study.
: The requirement for informed consent was waived because of the retrospective study design.