Collimatorless Scintigraphy for Imaging Extremely Low Activity Targeted Alpha Therapy (TAT) with Weighted Robust Least Squares (WRLS). - Yifan Zheng; Yoonsuk Huh; Qianqian Su; Jiaming Wang; Yunduan Lin; Kai Vetter; Youngho Seo (MICCAI (7), 2020)