The prevalence of comorbidities in COPD patients, and their impact on health status and COPD symptoms in primary care patients : a protocol for an UNLOCK study from the IPCRG

Ställberg, B, Teixeira, P, Blom, C, Lisspers, K, Tsiligianni, I, Jordan, R, Román-Rodríguez, M, Kleefstra, N, Korzh, O, Price, D & Chavannes, N 2016, 'The prevalence of comorbidities in COPD patients, and their impact on health status and COPD symptoms in primary care patients : a protocol for an UNLOCK study from the IPCRG', npj Primary Care Respiratory Medicine, vol. 26, 16069. https://doi.org/10.1038/npjpcrm.2016.69