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\bibitem{Hueso-Gonzalez_etal2015} Hueso-Gonzalez, F., Vijande, J., Ballester, F., Perez-Calatayud, J., \& Siebert, F. A. (2015). A simple analytical method for heterogeneity corrections in low dose rate prostate brachytherapy. \textit{Phys. Med. Biol.}, \textit{60}(14), 5455--5469.

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