. 2016 Aug 5;26(8):433–439. doi: 10.2188/jea.JE20140103
© 2016 Ang Zhao et al.
This is an open access article distributed under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Figure 1. Location of Guangzhou City in China.
