Zhang, Z.
Li, W.
Wu, W.
Xie, Q.
Li, J.
Zhang, W.
Zhang, Y.
Funding for this research was provided by:
Panyu Central Hospital
Guangzhou Medical and Health Science and Technology General Guidance Project (No. 20171A011352)
Youth Research Funds of Panyu Central Hospital
Article History
Received: 11 January 2018
Revised: 23 April 2018
Accepted: 20 May 2018
First Online: 12 June 2018
Compliance with ethical guidelines
:
: Z. Zhang, W. Li, W. Wu, Q. Xie, J. Li, W. Zhang, and Y. Zhang declare that they have no competing interests.
: 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 1975 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.