Song, Jingyuan
Li, Hongxia
Wang, Yuli
Liu, Ping
Li, Xueying
Tang, Chaoshu
Jin, Hongfang
Du, Junbao
Funding for this research was provided by:
Beijing Municipal Science and Technology Major Project (No. Z171100001017253, Beijing, China)
National Youth Top-notch Talent Support Program
Article History
Received: 4 November 2017
Accepted: 8 May 2018
First Online: 16 May 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest. This manuscript is approved by all authors for publication.
: 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.
: Informed consent was obtained from all individual participants included in the study.