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Authors
Sun, Suofeng
Li, Yuan
Han, Shuangyin
Jia, Hongtao
Li, Xiuling
Li, Xiaofang
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (No.81772670)
Promotion Project of Digest the Specialist Medical Service Ability
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Article History
Received: 20 December 2018
Accepted: 9 September 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
