BMC pulmonary medicine Leeming, D J, Byrjalsen, I, Sand, J M B, Bihlet, A R, Lange, P, Thal-Singer, R, Miller, B E, Karsdal, M A, Vestbo, J, Ivanov, Y, Kostov, K, Bourbeau, J, Fitzgerald, M, Hernández, P, Killian, K, Levy, R, Maltais, F, O'Donnell, D, Krepelka, J, Vestbo, J, Wouters, E, Quinn, D, Bakke, P, Kosnik, M, Agusti, A, Sauleda, J, Feschenko, Y, Gavrisyuk, V, Yashina, L, MacNee, W, Singh, D, Wedzicha, J, Anzueto, A, Braman, S, Casaburi, R, Celli, B, Giessel, G, Gotfried, M, Greenwald, G, Hanania, N, Mahler, D, Make, B, Rennard, S, Rochester, C, Scanlon, P, Schuller, D, Sciurba, F, Sharafkhaneh, A, Siler, T, Silverman, E & The Evaluation of COPD Longitudinally to Identify Surrogate Endpoints (ECLIPSE) study investigators 2017, ' Biomarkers of collagen turnover are related to annual change in FEV 1 in patients with chronic obstructive pulmonary disease within the ECLIPSE study ', BMC Pulmonary Medicine, vol. 17, no. 1, 164 . https://doi.org/10.1186/s12890-017-0505-4 BMC Pulmonary Medicine Leeming, D J, Byrjalsen, I, Sand, J M B, Bihlet, A R, Lange, P, Thal-Singer, R, Miller, B E, Karsdal, M A & Vestbo, J 2017, ' Biomarkers of collagen turnover are related to annual change in FEV 1 in patients with chronic obstructive pulmonary disease within the ECLIPSE study ', B M C Pulmonary Medicine, vol. 17, 164, pp. 1-10 . https://doi.org/10.1186/s12890-017-0505-4 BMC Pulmonary Medicine, Vol 17, Iss 1, Pp 1-10 (2017)