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Authors
Sun, Yueming
Li, Shuangling http://orcid.org/0000-0002-4292-8208
Wang, Shupeng
Li, Chen
Li, Gang
Xu, Jiaxuan
Wang, Hongzhi
Liu, Fei
Yao, Gaiqi
Chang, Zhigang
Liu, Yalin
Shang, Meixia
Wang, Dongxin
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Article History
Received: 10 October 2019
Accepted: 16 January 2020
First Online: 21 February 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Peking University First Hospital (2017[1422]). As the study was pure observational and retrospective in nature, the Ethics Committee agreed to exempt the written informed consent. However, all enrolled patients or their family members had verbally agreed to participate in the long-term follow-up before collecting data.
: The manuscript has been read and its submission approved by all coauthors.
: The authors declare that they have no financial or non-financial competing of interest.
