Backman, H., Lindberg, A., Sovijärvi, A., Larsson, K., Lundbäck, B., & Rönmark, E. (2015). Evaluation of the global lung function initiative 2012 reference values for spirometry in a Swedish population sample. BMC Pulm Med.

Backman, Helena, Anne Lindberg, Anssi Sovijärvi, Kjell Larsson, Bo Lundbäck, and Eva Rönmark. "Evaluation of the Global Lung Function Initiative 2012 Reference Values for Spirometry in a Swedish Population Sample." BMC Pulm Med 2015.

Backman, Helena, et al. "Evaluation of the Global Lung Function Initiative 2012 Reference Values for Spirometry in a Swedish Population Sample." BMC Pulm Med 2015.