D. Louis Collins Alex P. Zijdenbos Vasken Kollokian John G. Sled N. J. Kabani Colin J. Holmes Alan C. Evans Design and Construction of a Realistic Digital Brain Phantom. 463-468 1998 17 IEEE Trans. Med. Imaging 3 db/journals/tmi/tmi17.html#CollinsZKSKHE98 http://dx.doi.org/10.1109/42.712135