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Reproducibility of Arabic TFEQ-R18 with Bland-Altman Analysis. The mean difference between the scores of the 1st attempt (N = 513) and 2nd attempt (N = 127) was plotted against the mean of the two attempts for each domain of the TFEQ-R18 questionnaire in Arabic. ULA-the upper limit of agreement, LLA-the lower limit of agreement.
