How frequent is bronchodilator reversibility in patients with stable asthma bronchiale and chronic obstructive lung disease (COPD) receiving maintenance therapy?
Veronika Muller, Gabriella Galffy, Marta Orosz, Zsuzsanna Kovats, Gyorgy Losonczy, Lilla Tamasi
European Respiratory Journal 2012 40: P2162; DOI: