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APA Citation
Hyldgaard, C., Bendstrup, E., Pedersen, A. B., Ulrichsen, S. P., Løkke, A., Hilberg, O., & Ellingsen, T. (2018). increased mortality among patients with rheumatoid arthritis and COPD: A population-based study. Respiratory medicine, 140, 101–107. http://access.bl.uk/ark:/81055/vdc_100066407684.0x00003f