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\bibitem{Gimenez-Alventosa_etal2016} Gimenez-Alventosa, V., Ballester, F., \& Vijande, J. (2016). VoxelMages: a general-purpose graphical interface for designing geometries and processing DICOM images for PENELOPE. \textit{Appl. Radiat. Isot.}, \textit{118}, 251--257.

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