Deismireacht APA

Lederer, D. J., Bartels, M. N., Schluger, N. W., Brogan, F., Jellen, P., Thomashow, B. M., & Kawut, S. M. (2012). Sildenafil for Chronic Obstructive Pulmonary Disease: A Randomized Crossover Trial. COPD.

Citação norma Chicago

Lederer, David J., Matthew N. Bartels, Neil W. Schluger, Frances Brogan, Patricia Jellen, Byron M. Thomashow, and Steven M. Kawut. "Sildenafil for Chronic Obstructive Pulmonary Disease: A Randomized Crossover Trial." COPD 2012.

Deismireacht MLA

Lederer, David J., et al. "Sildenafil for Chronic Obstructive Pulmonary Disease: A Randomized Crossover Trial." COPD 2012.

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