Etiotypes in COPD: a pro/con debate Alvar Agusti; Marc Miravitlles;

Lung Function and Symptoms of Exposure to the Volcanic Eruption in the Canary Islands: First Follow-Up of the ASHES Study Cristina Candal-Pedreira; David Díaz-Pérez; Valle Velasco; Ciro Casanova; Orlando Acosta; Germán Peces-Barba; Esther Barreiro; Ana Cañas; Argelia Castaño; María Jesús Cruz Carmona; Carmen Diego; Judith Garcia-Aymerich; Cristina Martínez; María Molina-Molina; Xavier Muñoz; Francisco Javier Sánchez-Íñigo; Alberto Ruano-Ravina;

Impact of Applying the Global Lung Initiative Criteria for Airway Obstruction in GOLD Defined COPD Cohorts: The BODE and CHAIN Experience Juan P. de-Torres; Ciro Casanova; José M. Marín; Carlos Cabrera; Marta Marín; Ana Ezponda; Borja G. Cosio; Cristina Martínez; Ingrid Solanes; Antonia Fuster; Myriam Calle; Germán Peces-Barba; Carolina Gotera; Nuria Feu-Collado; Alicia Marin; Ana Belén Alcaide; Matilde Sangro; Gorka Bastarrika; Bartolome R. Celli;