Voineskos AN, Donnell LJO, Lobaugh NJ, Markant D, Ameis SH, Niethammer M, Mulsant BH, Pollock BG, Kennedy JL, Westin CF, Shenton ME. Quantitative Examination of a Novel Clustering Method using Magnetic Resonance Diffusion Tensor Tractography. Neuroimage. 2009;45(2):370–6.