Meta-Regression Analysis of VR-Based Exposure Therapy Sessions The meta-analysis showed a trend in the dose–response relationship, but there was no significant dose effect ( p = 0.159) ( Figure 5 ), which indicated that more therapy sessions could not yield larger effect sizes. 4.
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Effects of Virtual Reality-Based Graded Exposure Therapy on PTSD Symptoms: A Systematic Review and Meta-Analysis.
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