1. Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
2. Laboratory Animal Center, Taipei Medical University, Taipei, Taiwan
3. Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
4. Health Physics Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
5. Consumer and Clinical Radiation Protection Bureau, Health Canada, Ottawa, Canada
6. Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan