Zheng, Xinying
Jia, Rufu
Li, Yuanyuan
Liu, Tingting
Wang, Zhijing
Funding for this research was provided by:
Wujieping Medical Fund (320.6750.16050)
Article History
Received: 28 January 2020
Accepted: 6 May 2020
First Online: 22 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This research obtained approval from the ethics committee of Cangzhou Central Hospital.
: All participants in this study were informed and gave a written consent.