Conversely, the RCT subgroup had a slightly higher SMD of −0.293 (95% CI: −0.823 to 0.237), indicating a reduction in AST levels, although this did not reach statistical significance, which could be reflective of the higher heterogeneity present ( I 2 = 84%).
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Efficacy of stem cell therapy in patients with chronic liver disease: an umbrella review of systematic reviews.
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