Brusasco, V., Hodder, R., Miravitlles, M., Korducki, L., Towse, L., & Kesten, S. (2003). Health outcomes following treatment for six months with once daily tiotropium compared with twice daily salmeterol in patients with COPD. Thorax, 58(5), 399. https://doi.org/10.1136/thorax.58.5.399
Chicago Style (17th ed.) CitationBrusasco, V., R. Hodder, M. Miravitlles, L. Korducki, L. Towse, and S. Kesten. "Health Outcomes Following Treatment for Six Months with Once Daily Tiotropium Compared with Twice Daily Salmeterol in Patients with COPD." Thorax 58, no. 5 (2003): 399. https://doi.org/10.1136/thorax.58.5.399.
MLA (9th ed.) CitationBrusasco, V., et al. "Health Outcomes Following Treatment for Six Months with Once Daily Tiotropium Compared with Twice Daily Salmeterol in Patients with COPD." Thorax, vol. 58, no. 5, 2003, p. 399, https://doi.org/10.1136/thorax.58.5.399.