Zhou, Zhiyong
Cheng, Jianxin
Wei, Wheijane
Lee, Laichung
Article History
Received: 4 September 2018
Accepted: 16 November 2018
First Online: 8 December 2018
Compliance with ethical standards
:
: We declare that we have no conflict of interest. We declare that we have no conflict of interest.
: All procedures implemented in studies involving human participants conform to the ethical standards of institutions and national research committees, as well as the 1964 Helsinki Declaration and its subsequent amendments or similar ethical standards. All procedures implemented in studies involving human participants conform to the ethical standards of institutions and national research committees, as well as the 1964 Helsinki Declaration and its subsequent amendments or similar ethical standards.
: Informed consent was obtained from all individual participants included in the study.