Reyer Zwiggelaar Yanong Zhu Stuart Williams Semi-automatic Segmentation of the Prostate. 1108-1116 https://doi.org/10.1007/978-3-540-44871-6_128 2003 conf/ibpria/2003 IbPRIA db/conf/ibpria/ibpria2003.html#ZwiggelaarZW03