APA (7th ed.) Citation

Chapman, K. R., Arvidsson, P., Chuchalin, A., Dhillon, D., Faurschou, P., Goldstein, R. S., & Kuipers, A. The Addition of Salmeterol 50 µg Bid to Anticholinergenic Treatment in Patients with COPD: A Randomized Placebo Controlled Trial. Wiley.

Chicago Style (17th ed.) Citation

Chapman, Kenneth R., Peter Arvidsson, AG Chuchalin, DP Dhillon, Peter Faurschou, Roger S. Goldstein, and AF Kuipers. The Addition of Salmeterol 50 µg Bid to Anticholinergenic Treatment in Patients with COPD: A Randomized Placebo Controlled Trial. Wiley.

MLA (9th ed.) Citation

Chapman, Kenneth R., et al. The Addition of Salmeterol 50 µg Bid to Anticholinergenic Treatment in Patients with COPD: A Randomized Placebo Controlled Trial. Wiley.