Importance of the relationship between symptoms and self-reported physical activity level in stable COPD based on the results from the SPACE study.
Florin MihaltanYochai AdirAdam AntczakKonstantinos PorpodisVesna RadulovicNuno PiresGeeuwke Jan de VriesAndreas HornerSamuel De BontridderYunqin ChenAnat ShavitSilviu AlecuLukasz AdamekPublished in: Respiratory research (2019)
NCT03031769 , retrospectively registered, 23 Jan 2017.