Cinematography done by Chanaka Senadheera and feature writing by Asanka Manori. Sample size was calculated based on the primary outcome measurement of TNSS and as for a non-inferiority clinical trial. Tools Tools. Retrieved 3 December Method of data analysis For primary and secondary outcome measures, the mean values at baseline and at the end of the study and the mean differences will be compared between the three arms using ANOVA analysis of variance or the non-parametric Kruskal—Wallis test, depending on the normality of the data.
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