Frisk, B., Hardie, J. A., Espehaug, B., Strand, L. I., Moe-Nilssen, R., Eagan, T. M. L., . . . Thorsen, E. (2015). Peak oxygen uptake and breathing pattern in COPD patients – a four-year longitudinal study. BMC Pulm Med.

Frisk, Bente, Jon A. Hardie, Birgitte Espehaug, Liv I. Strand, Rolf Moe-Nilssen, Tomas M. L. Eagan, Per S. Bakke, e Einar Thorsen. "Peak Oxygen Uptake and Breathing Pattern in COPD Patients – a Four-year Longitudinal Study." BMC Pulm Med 2015.

Frisk, Bente, et al. "Peak Oxygen Uptake and Breathing Pattern in COPD Patients – a Four-year Longitudinal Study." BMC Pulm Med 2015.