
Keywords: AA; arachidonic acid; COPD; chronic obstructive pulmonary disease; DHA; cis-4,7,10,13,16,19-docosahexaenoic acid; ELISA; enzyme-linked immunosorbent assay; EPA; cis-5,8,11,14,17-eicosapentaenoic acid; EPR; electron paramagnetic resonance; GLY; glycerol; P