please cite:

D. Salas-Gonzalez, Juan M. Gorriz, Javier Ramirez, Ignacio A. Illan, Pablo Padilla, Francisco J. Martinez Murcia, Elmar W. Lang. "Building a FP-CIT SPECT brain template using a posterization approach".Neuroinform DOI 10.1007/s12021-015-9262-9

