Drivers of year-to-year variation in exacerbation frequency of COPD: analysis of the AERIS cohort oleh Tom M.A. Wilkinson, Emmanuel Aris, Simon C. Bourne, Stuart C. Clarke, Mathieu Peeters, Thierry G. Pascal, Laura Taddei, Andrew C. Tuck, Viktoriya L. Kim, Kristoffer K. Ostridge, Karl J. Staples, Nicholas P. Williams, Anthony P. Williams, Stephen A. Wootton, Jeanne-Marie Devaster, The AERIS Study Group:, J. Alnajar, R. Anderson, E. Aris, W.R. Ballou, A. Barton, S. Bourne, M. Caubet, S.C. Clarke, D. Cleary, C. Cohet, N.A. Coombs, K. Cox, J-M. Devaster, V. Devine, N. Devos, E. Dineen, T. Elliott, R. Gladstone, S. Harden, J. Jefferies, V.L. Kim, P. Moris, K.K. Ostridge, T.G. Pascal, M. Peeters, B. Sente, S. Schoonbroodt, K.J. Staples, A.C. Tuck, L. Welch, V. Weynants, T.M.A. Wilkinson, A.P. Williams, N.P. Williams, C. Woelk, M. Wojtas, S.A. Wootton