Foo, J., Landis, S. H., Maskell, J., Oh, Y., van der Molen, T., Han, M. K., . . . Punekar, Y. (2016). Continuing to Confront COPD International Patient Survey: Economic Impact of COPD in 12 Countries. PLoS One.

Foo, Jason, Sarah H. Landis, Joe Maskell, Yeon-Mok Oh, Thys van der Molen, MeiLan K. Han, David M. Mannino, Masakazu Ichinose, and Yogesh Punekar. "Continuing to Confront COPD International Patient Survey: Economic Impact of COPD in 12 Countries." PLoS One 2016.

Foo, Jason, et al. "Continuing to Confront COPD International Patient Survey: Economic Impact of COPD in 12 Countries." PLoS One 2016.