Zhang, Dongmei
Xiao, Yi
Luo, Jinmei
Wang, Xiaona
Qiao, Yixian
Huang, Rong
Wu, Wei
Funding for this research was provided by:
National Natural Science Foundation of China (81570085)
Article History
Received: 27 July 2018
Revised: 29 October 2018
Accepted: 15 November 2018
First Online: 12 December 2018
Compliance with ethical standards
: All procedures performed in this study were in accordance with the ethical standards of the institutional 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. No identifying information about participants is available in this article.
: The authors declare that they have no conflict of interest.
: The study was approved by the ethics committee of Peking Union Medical College Hospital (protocol number ZS-1107).