Lung Diffusing Capacity Improves the Prognostic Validity of the GOLD Spirometric Staging in COPD Ciro Casanova, Enrique Gonzalez-Dávila, Juan P. de Torres, Carlos Cabrera, Borja G. Cosio, Denis E. O’Donnel, Cristina Martínez-Gonzalez, Ingrid Solanes, Antonia Fuster, Carolina Gotera, Alicia Marin, Carlos Amado, Marta Iscar, José M. Marin, José Alberto Neder, Nuria Feu, Joan B. Soriano, José Luis López-Campos, Miguel Divo, Germán Peces-Barba, Bartolomé R. Celli

Spirometric Transition of at Risk Individuals and Risks for Progression to Chronic Obstructive Pulmonary Disease in General Population Yong Suk Jo, Chin Kook Rhee, Sang Hyuk Kim, Hyun Lee, Joon Young Choi

Comparing Spirometric Reference Values From Childhood to Old Age Estimated by LMS and Linear Regression Models David Martínez-Briseño, Laura Gochicoa-Rangel, Luis Torre-Bouscoulet, Silvia Cid-Juárez, Rosario Fernández-Plata, Luisa Martínez-Valdeavellano, Sofía Chapela-Lara, Rodrigo del Río-Hidalgo, Rogelio Pérez-Padilla