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Authors
Ding, Yuqin
Fang, Qianjin
Li, Yan
Wang, Yanni
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Article History
Received: 15 May 2019
Accepted: 12 June 2019
First Online: 20 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Second People’s Hospital of Hefei, Anhui Medical University Affiliated Hefei Hospital.
: All participants signed written consent.
