Charoenchai Ussawakongkiat. (2002) Anatomic consideration of pedicle screw placement in the thoracic spine, comparison between Roy-Camille technique and Funnel technique. <i>Journal of Medicine and Health Sciences</i>, <i>9</i>(1), 26-33.Charoenchai Ussawakongkiat. "Anatomic consideration of pedicle screw placement in the thoracic spine, comparison between Roy-Camille technique and Funnel technique". Journal of Medicine and Health Sciences 9 (2002):26-33.Charoenchai Ussawakongkiat. Anatomic consideration of pedicle screw placement in the thoracic spine, comparison between Roy-Camille technique and Funnel technique. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 2002.