- Epigenetic abnormalities associated with a chromosome 18(q21-q22) inversion and a Gilles de la Tourette syndrome phenotype. State, M.W., Greally, J.M., Cuker, A., Bowers, P.N., Henegariu, O., Morgan, T.M., Gunel, M., DiLuna, M., King, R.A., Nelson, C., Donovan, A., Anderson, G.M., Leckman, J.F., Hawkins, T., Pauls, D.L., Lifton, R.P., Ward, D.C. Proc. Natl. Acad. Sci. U.S.A. (2003)