Fig. 1
From: Albuminuria as a non-invasive biomarker of endothelial dysfunction in patients with COPD

Boxplot showing UACR (mg/g) of COPD patients and the control group. The upper and lower borders of boxes represent the third and first quartiles, center lines denote the median, and whiskers show the minimum and maximum. UACR; urine albumin-to-creatinine ratio, mg; milligram, g; gram.