Siriporn Wong และ Taweap Sanghangthum. (2017) CT NUMBER AND ELECTRON DENSITY RELATIONSHIP FOR PHOTON DOSE CALCULATION IN HEAD AND NECK, CHEST, SPINE AND PELVIC REGIONS. Chulalongkorn University:ม.ป.ท.Siriporn Wong และ Taweap Sanghangthum. 2017. CT NUMBER AND ELECTRON DENSITY RELATIONSHIP FOR PHOTON DOSE CALCULATION IN HEAD AND NECK, CHEST, SPINE AND PELVIC REGIONS. ม.ป.ท.:Chulalongkorn University;Siriporn Wong และ Taweap Sanghangthum. CT NUMBER AND ELECTRON DENSITY RELATIONSHIP FOR PHOTON DOSE CALCULATION IN HEAD AND NECK, CHEST, SPINE AND PELVIC REGIONS. ม.ป.ท.:Chulalongkorn University, 2017. Print.