APA Citation

Smith, B. M., & Barr, R. G. (2013). Establishing normal reference values in quantitative computed tomography of emphysema.

Chicago Style Citation

Smith, Benjamin M., and R. Graham Barr. Establishing Normal Reference Values in Quantitative Computed Tomography of Emphysema. 2013.

MLA Citation

Smith, Benjamin M., and R. Graham Barr. Establishing Normal Reference Values in Quantitative Computed Tomography of Emphysema. 2013.

Warning: These citations may not always be 100% accurate.