O’Donnell, C. R., Bankier, A. A., Stiebellehner, L., Reilly, J. J., Brown, R., & Loring, S. H. (2010). Comparison of Plethysmographic and Helium Dilution Lung Volumes: Which Is Best for COPD? American College of Chest Physicians.

O’Donnell, Carl R., Alexander A. Bankier, Leopold Stiebellehner, John J. Reilly, Robert Brown, and Stephen H. Loring. Comparison of Plethysmographic and Helium Dilution Lung Volumes: Which Is Best for COPD? American College of Chest Physicians, 2010.

O’Donnell, Carl R., et al. Comparison of Plethysmographic and Helium Dilution Lung Volumes: Which Is Best for COPD? American College of Chest Physicians, 2010.