Zhao, Fu
Zhang, Jing
Li, Peng
Zhou, Qiangyi
Zhang, Shun
Zhao, Chi
Wang, Bo
Yang, Zhijun
Li, Chunde
Liu, Pinan http://orcid.org/0000-0002-8064-5049
Funding for this research was provided by:
Beijing Program Foundation for the Talents (2016000021469G216)
the Capital Health Development and Research Special Projects of Beijing (2011-1015-01)
Article History
Received: 20 November 2017
Accepted: 8 April 2018
First Online: 23 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.