RT Journal Article SR Electronic T1 Natural history of COPD: gaps and opportunities JF ERJ Open Research JO erjor FD European Respiratory Society SP 00117-2017 DO 10.1183/23120541.00117-2017 VO 3 IS 4 A1 Alvar Agustí A1 Bartolomé Celli YR 2017 UL http://openres.ersjournals.com/content/3/4/00117-2017.abstract AB Understanding the natural history of a disease is as important as knowing its cause(s) for effective disease prevention and treatment. Yet, our current understanding of the natural history of chronic obstructive pulmonary disease (COPD) is incomplete and often controversial. This article discusses the current gaps, and hence opportunities for research, in this field. In particular, it discusses the following six specific questions. 1) Is COPD a “single” disease? 2) Is COPD “only” a lung disease? 3) When does COPD begin or what is “early” COPD? 4) How does COPD “progress”? 5) How do we assess disease “severity”? 6) Can COPD be prevented (beyond smoking cessation) or its course be modified once detected?A new review series starts in ERJ Open Research: “Gaps in our understanding of COPD” http://ow.ly/CFSD30gpXs8