Fig. 4From: Increased expression of A Proliferation-inducing Ligand (APRIL) in lung leukocytes and alveolar epithelial cells in COPD patients with non small cell lung cancer: a possible link between COPD and lung cancer?The proportion of APRIL-expressing PMNs in the lungs of control subjects, and patients with COPD alone, NSCLC alone or patients with both COPD and NSCLC: The percentages of APRIL-positive PMNs in the lungs of NSC, SC, patients with COPD alone, NSCLC alone and both COPD and NSCLC are shown. The box plots show the median values and the 5 and 95 % confidence intervals, and the error bars are the standard deviations. * indicates p < 0.03 vs. NSC or vs. the group indicatedBack to article page