Liu, Bing-Yang
Wu, Wei-Chun
Zeng, Qi-Xian
Liu, Zhi-Hong
Niu, Li-Li
Tian, Yue
Cheng, Xiao-Ling
Luo, Qin
Zhao, Zhi-Hui
Huang, Li
Wang, Hao
He, Jian-Guo
Xiong, Chang-Ming
Article History
Received: 28 February 2019
Accepted: 16 April 2019
First Online: 29 April 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: The present study was approved by the Ethics Committee of Fuwai Hospital (No. 2018-1063). All procedures performed in our study involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments.
: Written informed consent was obtained from all participants in this study.