Arthorn Riewpaiboon*, Issarang Nuchprayoon, Kitti Torcharus, Kaemthong Indaratna, Montarat Thavorncharoensap and Bang-on Ubol
* Corresponding author: Arthorn Riewpaiboon pyarp@mahidol.ac.th
BMC Research Notes 2010, 3:29 doi:10.1186/1756-0500-3-29