Systematic Review and Meta-Analysis of 16 Randomized Clinical Trials of Radix Astragali and Its Prescriptions for Diabetic Retinopathy

<table>Meta-analysis of HbA1C (radix astragali group versus control group).</table>

Evidence-Based Complementary and Alternative Medicine

Figure 5: Systematic Review and Meta-Analysis of 16 Randomized Clinical Trials of Radix Astragali and Its Prescriptions for Diabetic Retinopathy 