Figure 3From: Panax ginseng therapy for chronic obstructive pulmonary disease: a clinical trial protocol and pilot studyLung function and SGRQ results: (A) mean post-bronchodilator FEV1 in litres, (B) mean post-bronchodilator FVC in liters, (C) post-bronchodilator FEV1/FVC percentage and (D) SGRQ total score. Error bars were standard deviations. There was no significant difference between groups at any time point.Back to article page