Assessment of Induced Sputum Cellularity in COPD Patients Belonging to Two Different Classes of Air Pollution Exposure Silvano Dragonieri, Donato Lacedonia, Giulia Scioscia, Grazia Pia Palladino, Vitaliano Nicola Quaranta, Pierluigi Carratù, Onofrio Resta, Maria Pia Foschino Barbaro, Giovanna Elisiana Carpagnano

Frequency of Osteoporosis and Vertebral Fractures in Chronic Obstructive Pulmonary Disease (COPD) Patients Mariana R. Gazzotti, Carolina M. Roco, Cristiane O. Pradella, Oliver A. Nascimento, Elias F. Porto, Mariana Adas, Marise Lazaretti-Castro, José R. Jardim

Prevalence and Determinants of COPD in Spain: EPISCAN II Joan B. Soriano, Inmaculada Alfageme, Marc Miravitlles, Pilar de Lucas, Juan José Soler-Cataluña, Francisco García-Río, Ciro Casanova, José Miguel Rodríguez González-Moro, Borja G. Cosío, Guadalupe Sánchez, Julio Ancochea