5American Psychiatric Association.Diagnostic and statistical manual of mental disorder[M].4th ed(DSM-Ⅳ).Washington DC-American Psychiatric Association,1994.100
6Leckman JF,Riddle MA,Hardin MT,et al.The Yale Global Tic Severity Scale:initial testing of a clinician rated scale of tic severity[J].J Am Ac ad Child Adolesc Psychiatry,1989,28(4):566