TY - JOUR T1 - Dissecting COPD exacerbations: time to rethink our definition JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/13993003.01432-2017 VL - 50 IS - 3 SP - 1701432 AU - Bartolome R. Celli Y1 - 2017/09/01 UR - http://erj.ersjournals.com/content/50/3/1701432.abstract N2 - “Measure what is measurable, and make measurable what is not so.”Galileo Galilei (1564–1642)The Age of Enlightenment reminded humans of the importance of critical and innovative thinking that had been lost during the middle ages. The cited phrase of Galileo is very appropriate when referring to the field of exacerbations of chronic obstructive pulmonary disease (COPD).Variables measured during COPD exacerbations inform about their relationships and exacerbation definition http://ow.ly/3mdc30etU3s ER -