Huang, Cheng
Zhou, Chun
Xu, Minhua
Zou, Derong
Funding for this research was provided by:
Medical Scientific Research Foundation of Shanghai Hongkou District Health Commission of China (1803-02)
Shanghai Hongkou Excellent Youth Physician Training Programme (HKYG 2018-10)
Article History
Received: 19 November 2019
Accepted: 14 April 2020
First Online: 30 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of our institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study (retrospective study), formal consent is not required.