. 2015 Mar 5;25(3):246–253. doi: 10.2188/jea.JE20140152
© 2015 Shih-Wei Lai 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. Flow chart of selection of study subjects.
