Shu-Sen Chang, Tsung-Hsueh Lu*, Jonathan AC Sterne, Michael Eddleston, Jin-Jia Lin and David Gunnell
* Corresponding author: Tsung-Hsueh Lu robertlu@mail.ncku.edu.tw
BMC Public Health 2012, 12:260 doi:10.1186/1471-2458-12-260
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