Longitudinal profiling of the lung microbiome in the AERIS study demonstrates repeatability of bacterial and eosinophilic COPD exacerbations. - Mayhew D; Devos N; Lambert C; Brown JR; Clarke SC; Kim VL; Magid-Slav M; Miller BE; Ostridge KK; Patel R; Sathe G; Simola DF; et al. (Thorax, 2018)