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

Characterization of Inactive COPD Patients: Barriers to Physical Activity and Perceived Impact of Inactivity Jose M. Padilla, Enrique Alfaro, Raquel Casitas, Raúl Galera, Elisabet Martínez-Cerón, Elena Díaz-García, María Vargas Torres, Cristina López-Fernández, Paula Pérez-Moreno, Juan José Soler-Cataluña, Carolina Cubillos-Zapata, Francisco García-Río

Identification of Pleural Response Patterns: A Cluster Analysis Lucía Ferreiro, Óscar Lado-Baleato, María E. Toubes, Juan Suárez-Antelo, Antonio Pose-Reino, María E. San José, José Manuel Álvarez-Dobaño, Francisco J. González-Barcala, Jorge Ricoy, Francisco Gude, Luis Valdés