Huang, Chen
He, Xueping
Luo, Wenfeng
Chen, Hanwei
Huang, Yi
Article History
First Online: 4 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Institutional Review Board/Ethics Committee approved this study—the medical ethics committee of Guangzhou Panyu Central Hospital (reference no: P20120038.
: Informed consent was obtained from all patients prior to participation in the study.