Leeming, DJ; Byrjalsen, I; Sand, JMB; Bihlet, AR; Lange, P; Evaluation of COPD Longitudinally to Identify Surrogate Endpoint; Thal-Singer, R; ... Vestbo, J; + view all Leeming, DJ; Byrjalsen, I; Sand, JMB; Bihlet, AR; Lange, P; Evaluation of COPD Longitudinally to Identify Surrogate Endpoint; Thal-Singer, R; Miller, BE; Karsdal, MA; Vestbo, J; - view fewer (2017) Biomarkers of collagen turnover are related to annual change in FEV1 in patients with chronic obstructive pulmonary disease within the ECLIPSE study. BMC Pulmonary Medicine , 17 , Article 164. 10.1186/s12890-017-0505-4.