Joint Regional Uptake Quantification of Thorium-227 and Radium-223 Using a Multiple-Energy-Window Projection-Domain Quantitative SPECT Method. - Li, Zekun; Benabdallah, Nadia; Laforest, Richard; Wahl, Richard L.; Thorek, Daniel L. J.; Jha, Abhinav K. (IEEE Trans. Medical Imaging, 2024)