Dalal, A. A., St Charles, M., Petersen, H. V., Roberts, M. H., Blanchette, C. M., & Manavi-Zieverink, K. (2010). Cost-effectiveness of combination fluticasone propionate–salmeterol 250/50 μg versus salmeterol in severe COPD patients. Dove Medical Press.

Dalal, Anand A., Meaghan St Charles, Hans V. Petersen, Melissa H. Roberts, Christopher M. Blanchette, und Kathy Manavi-Zieverink. Cost-effectiveness of Combination Fluticasone Propionate–salmeterol 250/50 μg Versus Salmeterol in Severe COPD Patients. Dove Medical Press, 2010.

Dalal, Anand A., et al. Cost-effectiveness of Combination Fluticasone Propionate–salmeterol 250/50 μg Versus Salmeterol in Severe COPD Patients. Dove Medical Press, 2010.