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Forest plot for the comparison of the BDI (a) at 2 weeks, showing the effect not favoring balneotherapy; (b) at 3 months, showing the effect not favoring balneotherapy; and (c) at 6 months, showing the effect favoring balneotherapy. Green square represent the std. mean difference, bars represent the 95% confidence interval, and black diamond represent the pooled analysis for each BDI.
