Wei-Cheng Chen, Shorong-Shii Liou, Thing-Fong Tzeng, Shiow-Ling Lee* and I-Min Liu*
* Corresponding authors: Shiow-Ling Lee slee@ttu.edu.tw - I-Min Liu iml@mail.tajen.edu.tw
BMC Complementary and Alternative Medicine 2012, 12:226 doi:10.1186/1472-6882-12-226