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Standardised effect sizes for primary and secondary outcomes
TTSS=Total Tic Severity Score. YGTSS=Yale Global Tic Severity Scale. PTQ=Parent Tic Questionnaire. CGIS-I=Clinical Global Impressions-Improvement. CGAS=Children's Global Assessment Scale. SDQ=Strengths and Difficulties Questionnaire. MFQ=Mood and Feelings Questionnaire. SCAS=Spence Child Anxiety Scale. QoL=Quality of Life. C&A-GTS-QOL=Child and Adolescent Gilles de la Tourette Syndrome-Quality of Life Scale.
