Research Article
Herbal Medicine (Sihogayonggolmoryeo-Tang or Chai-Hu-Jia-Long-Gu-Mu-Li-Tang) for Treating Hypertension:A Systematic Review and Meta-Analysis
Figure 2
Risk of bias summary for all included studies. Low, unclear, and high risk, respectively, are represented with the following symbols: “+,” “?,” and “−.”