1. Tiotropium in combination with placebo, salmeterol, or fluticasone-salmeterol for treatment of chronic obstructive pulmonary disease: a randomized trial;Aaron;Ann Intern Med,2007
2. Advances in asthma and COPD management: delivering CFC-free inhaled therapy using Modulite technology;Acerbi;Pulm Pharmacol Ther,2007
3. Anonymous 2007 Theravance, Inc. (THRX) Announces Positive Results of Clinical Program in Beyond Advair Collaboration http://www.biospace.com/news_story.aspxNewsEntityId=51071
4. Formoterol given either alone or together with tiotropium, reduces the rate of exacerbations in stable COPD patients;Arievich;Eur Respir J,2006
5. Indacaterol, a novel once-daily β2-agonist, is effective and well tolerated on multiple dosing in patients with mild-to-moderate COPD;Aubier;Eur Respir J,2005