Chutima Kaewpiboon, Kriengsak Lirdprapamongkol, Chantragan Srisomsap, Pakorn Winayanuwattikun, Tikamporn Yongvanich, Preecha Puwaprisirisan, Jisnuson Svasti and Wanchai Assavalapsakul*
* Corresponding author: Wanchai Assavalapsakul wanchai.a@chula.ac.th
BMC Complementary and Alternative Medicine 2012, 12:217 doi:10.1186/1472-6882-12-217