Statistical analysis
Study data were analyzed with the SPSS for Windows 17.0 package program (SPSS Inc., Chicago, IL). For descriptive measures, mean and standard deviation (SD) were used. The variables were considered to be distributed regularly by Shapiro-Wilk Test and comparisons between groups were made by Independent Samples T-test, one way ANOVA. The differences in each group before and after the treatment were identified by paired samples T-test. A p-value of < 0.05 was considered as being statically significant.