Guo, Shiwei
Yang, Mingyong http://orcid.org/0000-0001-8764-2791
Zhou, Chuande
Lv, Wei
Zhang, Jiaqi
Gu, Congmin
Fang, Xuan
Funding for this research was provided by:
Graduate Education Reform Project of Peking Union Medical College (10023-2016-004-04)
Article History
Received: 27 August 2018
Accepted: 22 October 2018
First Online: 19 November 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.