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;

Fractional Exhaled Nitric Oxide Guided-Therapy in Chronic Obstructive Pulmonary Disease: A Stratified, Randomized, Controlled Trial Kang-Cheng Su; Hsin-Kuo Ko; Yi-Han Hsiao; Kun-Ta Chou; Yen-Wen Chen; Wen-Kuang Yu; Sheng-Wei Pan; Jia-Yih Feng; Diahn-Warng Perng;

Association between occupational exposure and chronic obstructive pulmonary disease and respiratory symptoms in the Spanish population Eduardo Loeb; Jan-Paul Zock; Marc Miravitlles; Esther Rodríguez; Juan José Soler-Cataluña; Joan B. Soriano; Francisco García-Río; Pilar de Lucas; Inmaculada Alfageme; Ciro Casanova; José Miguel Rodríguez González-Moro; Julio Ancochea; Borja G. Cosío; Jaume Ferrer Sancho;