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Authors
Jin, Hengwei
Jiang, Yuhua
Liu, Xinke
Meng, Xiangyu
Li, Youxiang
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Article History
Received: 5 February 2020
Accepted: 15 April 2020
First Online: 12 June 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Beijing Tiantan Hospital (grant no. KY2014-046-02). This study was processed according to the principles expressed in the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
