European expert consensus on assessment and management of hospitalised exacerbations of COPD (CICERO ERS CRC) by Ramakrishnan, S, Janssens, W, Burgel, PR, Contoli, M, Franssen, FME, Greening, N, Greulich, T, Gyselinck, I, Huerta, A, Quint, J, Van Fleteren, L, Watz, H, Bafadhel, M