Funding for this research was provided by:
the Technological Bureau of Zhongshan (2015B1158)
Article History
Received: 7 October 2017
Accepted: 1 February 2018
First Online: 11 April 2018
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: Volunteer adults were recruited from Guangdong Medical University Affiliated Zhongshan Hospital with the informed consent of the individuals after permission by the ethical committees of Guangdong Medical University Affiliated Zhongshan Hospital, Zhongshan, China.