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Publications bias of four tyles of Tai Chi on anxiety (A) and depression (B). In the picture (A), A is control group, B is 24-form simplified Tai Chi, C is Tai Chi exercise program, D, is Yang style Tai Chi, E is Sun style Tai Chi. In picture (B), A is control group, B is Yang style Tai Chi, C is Tai Chi exercise program, D is 24-form simplified Tai Chi, E is Sun style Tai Chi.
