Profiling serum biomarkers in patients with COPD: associations with clinical parameters.
Pinto-Plata V, Toso J, Lee K, Park D, Bilello J, Mullerova H, De Souza MM, Vessey R, Celli B. Profiling serum biomarkers in patients with COPD: associations with clinical parameters. Thorax. 2007 Jul; 62(7):595-601.