1. Psychogenic dystonia;Fahn, S.; Williams, D.T.;Adv Neurol,1988
2. Hysteria 1875-1975;Woolsey, R.M.;Dis Nerv Syst,1976
3. Psychogenic disorders in neurology: frequency and clinical spectrum;Lempert, T.; Dieterich, M.; Huppert, D.; Brandt, T.;Acta Neurol Scand,1990
4. Psychogenic movement disorders;Fahn, S.,1994
5. Koller W, Lang A, Vetere-Overfield B, et al. Psychogenic tremors. Neurology 1989;39:1094-9.