Trends of COPD in Spain: Changes Between Cross Sectional Surveys 1997, 2007 and 2017 Elena García Castillo; Tamara Alonso Pérez; Adrián Peláez; Patricia Pérez González; Marc Miravitlles; Inmaculada Alfageme; Ciro Casanova; Borja G. Cosío; Pilar de Lucas; Francisco García-Río; José Miguel Rodríguez González-Moro; Juan José Soler-Cataluña; Guadalupe Sánchez; Joan B. Soriano; Julio Ancochea;

Effects of Pulmonary Hypertension on Exercise Capacity in Patients With Chronic Obstructive Pulmonary Disease Isabel Blanco; Beatriz Valeiro; Rodrigo Torres-Castro; Anael Barberán-García; Yolanda Torralba; Jorge Moisés; Laura Sebastián; Jeisson Osorio; José Rios; Elena Gimeno-Santos; Josep Roca; Joan A. Barberà;

Explanatory Factors for the Use of Local Anesthetics in the Management of Pain Induced by Arterial Puncture for Blood Gas Analysis by Nurses Julio Alberto Mateos-Arroyo; Ignacio Zaragoza-García; Rubén Sánchez-Gómez; Paloma Posada-Moreno; Sara García-Almazán; Ismael Ortuño-Soriano;