Yodtongde, N., Boonkitticharoen, V., Dhanachai, M. and Puataweepong, P. 2012. Comparison of Second Cancer Risk in Patients with Liver Cancer Treated By Stereo-tactic Body Radiotherapy and Three-Dimensional Conformal Radiotherapy. Ramathibodi Medical Journal. 35, 3 (Sep. 2012), 202–210.