Osteopontin levels in sputum supernatant and serum of patients with lung cancer: Does coexistent COPD make the difference?
Vaso Petta, Stelios Loukides, Konstantinos Kostikas, Georgios Papatheodorou, Zoi Tsilogianni, Spyridon Papiris, Nikolaos Koulouris, Petros Bakakos, Stelios Loukides
European Respiratory Journal 2013 42: P4192; DOI: