At the Root: Defining and Halting Progression of Early Chronic Obstructive Pulmonary Disease.

Martinez FJ, Han MK, Allinson JP, Barr RG, Boucher RC, Calverley PMA, Celli BR, Christenson SA, Crystal RG, Fagerås M, Freeman CM, Groenke L, Hoffman EA, Kesimer M, Kostikas K, Paine R, Rafii S, Rennard SI, Segal LN, Shaykhiev R, Stevenson C, Tal-Singer R, Vestbo J, Woodruff PG, Curtis JL, Wedzicha JA