Authors: Coffey, BJ Biederman, J Geller, DA Spencer, TJ Kim, GS Bellordre, CA Frazier, JA Cradock, K Magovcevic, M

Citation: Bj. Coffey et al., Distinguishing illness severity from tic severity in children and adolescents with Tourette's disorder, J AM A CHIL, 39(5), 2000, pp. 556-561