Patterns of Physical Activity Progression in Patients With COPD Maria Koreny; Heleen Demeyer; Marta Benet; Ane Arbillaga-Etxarri; Eva Balcells; Anael Barberan-Garcia; Elena Gimeno-Santos; Nicholas S. Hopkinson; Corina De Jong; Niklas Karlsson; Zafeiris Louvaris; Michael I. Polkey; Milo A. Puhan; Roberto A. Rabinovich; Robert Rodríguez-Roisin; Pere Vall-Casas; Ioannis Vogiatzis; Thierry Troosters; Judith Garcia-Aymerich;

Mucus Plugs as Precursors to Exacerbation and Lung Function Decline in COPD Patients Kwang Nam Jin; Hyo Jin Lee; Heemoon Park; Jung-Kyu Lee; Eun Young Heo; Deog Kyeom Kim; Hyun Woo Lee;

Impact of Applying the Global Lung Initiative Criteria for Airway Obstruction in GOLD Defined COPD Cohorts: The BODE and CHAIN Experience Juan P. de-Torres; Ciro Casanova; José M. Marín; Carlos Cabrera; Marta Marín; Ana Ezponda; Borja G. Cosio; Cristina Martínez; Ingrid Solanes; Antonia Fuster; Myriam Calle; Germán Peces-Barba; Carolina Gotera; Nuria Feu-Collado; Alicia Marin; Ana Belén Alcaide; Matilde Sangro; Gorka Bastarrika; Bartolome R. Celli;