Influence of cell quality on inflammatory biomarkers in COPD sputum supernatant - Pedersen, Frauke; Trinkmann, Frederik; Abdo, Mustafa; Kirsten, Anne-Marie; Rabe, Klaus F.; Watz, Henrik; Baraldo, Simonetta; Saetta, Marina; Hohlfeld, Jens; Holz, Olaf (The International journal of chronic obstructive pulmonary disease, 2021)