Oral <i>Huangqi</i> Formulae for Stable Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis

<table>Flow diagram showing the trial selection process for the systematic review.</table>

Evidence-Based Complementary and Alternative Medicine

Figure 1: Oral <i>Huangqi</i> Formulae for Stable Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis 