title: Nonlinear effects in behavioral changes in Huntington disease.
authors.forename: R
authors.initials: R
authors.lastname: Timman
authors.forename: A
authors.initials: A
authors.lastname: Tibben
authors.forename: R A C
authors.initials: RA
authors.lastname: Roos
mesh_terms: D016000:Cluster Analysis; D003627:Data Interpretation, Statistical; D006801:Humans; D006816:Huntington Disease / Q000150:complications* / Q000523:psychology*; D001523:Mental Disorders / Q000175:diagnosis* / Q000209:etiology; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data*; D012720:Severity of Illness Index