14.04.2008
opracowanie na podstawie: Combined corticosteroid and long-acting beta-agonist in one inhaler versus long-acting beta-agonist for chronic obstructive pulmonary disease (review)
L.J. Nannini, C.J. Cates, T.J. Lasserson, P. Poole
Cochrane Database of Systemic Reviews, 2007; Issue 4: Art. No.: CD006829 DOI: 10.1002/14651858. CD006829