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Authors
Hu, Yiran
Ding, Ligang
Hua, Wei
Gu, Min
Cai, Minsi
Chen, Xuhua
Fan, Xiaohan
Niu, HongXia
Zhang, Shu
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Article History
Received: 7 August 2019
Accepted: 29 October 2019
First Online: 8 December 2019
Compliance with ethical standards
: The study was performed with written informed consent from all patients and approval from the Ethics Committee of Fuwai Hospital and in accordance with the Declaration of Helsinki.
: The authors declare that they have no conflict of interest.
