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. 2013 Apr 26;3(4):e001853. doi: 10.1136/bmjopen-2012-001853

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Correlation between change in Craniocervical Dystonia Questionnaire-24 total score and change in total Tsui score from baseline to week 4. Display of raw data; one dot may represent more than one patient. Correlation coefficient: 0.26, p<0.001, n=484 (week 12: correlation coefficient: 0.24, p<0.001, n=474).