Emtner M., Hallin R., Arnardottir R.H. and Janson C. 2020. Effect of physical training on fat-free mass in patients with chronic obstructive pulmonary disease (COPD). Upsala Journal of Medical Sciences. 120, 1 (Nov. 2020). DOI:https://doi.org/10.3109/03009734.2014.990124.