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(A) Change from baseline in participants on any tic-suppressing medication (n = 77) to those not on tic medication. (B, C) Change in YGTSS in participants receiving α2 agonists only (n = 37) and antipsychotic medication only (n = 25). Error bars represent standard errors. CBIT = Comprehensive Behavioral Intervention for Tics; PST = psychoeducation and supportive therapy.
