Li, Mengyang
Jin, Enzhong
Dong, Chongya
Zhang, Chuan
Zhao, Mingwei
Qu, Jinfeng https://orcid.org/0000-0001-6875-8393
Article History
Received: 4 July 2018
Accepted: 4 December 2018
First Online: 17 December 2018
Ethics approval and consent to participate
: This study was approved by the Peking University People’s Hospital Review Board and adhered to the tenets of the Declaration of Helsinki and Health Insurance Portability and Accountability Act. Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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