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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;

Prevalence and 30-Day Mortality in Hospitalized Patients With Covid-19 and Prior Lung Diseases Jaime Signes-Costa; Iván J. Núñez-Gil; Joan B. Soriano; Ramón Arroyo-Espliguero; Charbel Maroun Eid; Rodolfo Romero; Aitor Uribarri; Inmaculada Fernández-Rozas; Marcos García Aguado; Víctor Manuel Becerra-Muñoz; Jia Huang; Martino Pepe; Enrico Cerrato; Sergio Raposeiras; Adelina Gonzalez; Francisco Franco-Leon; Lin Wang; Emilio Alfonso; Fabrizio Ugo; Juan Fortunato García-Prieto; Gisela Feltes; Mohammad Abumayyaleh; Carolina Espejo-Paeres; Jorge Jativa; Alvaro López Masjuan; Carlos Macaya; Juan A. Carbonell Asíns; Vicente Estrada;