TY - GEN AU - Hawkins,Padraig E AU - Alam,Jamshed AU - McDonnell,Timothy J AU - Kelly,Emer TI - Defining exacerbations in chronic obstructive pulmonary disease SN - 1747-6356 PY - 2016///0223 KW - Cough KW - physiopathology KW - Disease Progression KW - Dyspnea KW - Humans KW - Pulmonary Disease, Chronic Obstructive KW - Sputum N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1586/17476348.2015.1046438 ER -