PT - JOURNAL ARTICLE AU - Christian R. Osadnik AU - Martin I. MacDonald AU - Philip G. Bardin TI - The effect of smoking on exacerbation risk in eosinophilic patients with COPD AID - 10.1183/13993003.01820-2017 DP - 2017 Dec 01 TA - European Respiratory Journal PG - 1701820 VI - 50 IP - 6 4099 - http://erj.ersjournals.com/content/50/6/1701820.short 4100 - http://erj.ersjournals.com/content/50/6/1701820.full SO - Eur Respir J2017 Dec 01; 50