Aydin, Murat Asymmetric dimethylarginine contributes to airway nitric oxide deficiency in patients with COPD. [electronic resource] - The clinical respiratory journal May 2017 - 318-327 p. digital Publication Type: Journal Article ISSN: 1752-699X Standard No.: 10.1111/crj.12337 doi Subjects--Topical Terms: AgedArginine--adverse effectsBiomarkers--bloodCross-Sectional StudiesDisease ProgressionEnzyme Inhibitors--adverse effectsEnzyme-Linked Immunosorbent AssayFemaleForced Expiratory Volume--physiologyHumansLung--physiopathologyMaleMiddle AgedNitric Oxide--bloodProspective StudiesPulmonary Disease, Chronic Obstructive--diagnosisRespiratory Function TestsSmoking--epidemiology