Zhang, Hong-Zhi
Pan, Jie
Sun, Jing
Li, Yu-Mei
Zhou, Kang
Li, Yang
Cheng, Jin
Wang, Ying
Shi, Dong-Lei
Chen, Shao-Hui
Article History
Received: 6 April 2018
Accepted: 17 October 2018
First Online: 1 November 2018
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Review Board of Ethics Committee of Peking Union Medical College Hospital and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consents for publication were obtained from all participants.
: The authors declare that they have no competing interests.
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