Core outcome set for the management of acute exacerbations of chronic obstructive pulmonary disease: the COS-AECOPD ERS Task Force study protocol oleh Alexander G. Mathioudakis, Fekri Abroug, Alvar Agusti, Per Bakke, Konstantinos Bartziokas, Bianca Beghe, Andras Bikov, Thomas Bradbury, Guy Brusselle, Cordula Cadus, Courtney Coleman, Marco Contoli, Alexandru Corlateanu, Olga Corlateanu, Gerard Criner, Balazs Csoma, Alexander Emelyanov, Rosa Faner, Gustavo Fernandez Romero, Zeineb Hammouda, Peter Horváth, Arturo Garcia Huerta, Michael Jacobs, Christine Jenkins, Guy Joos, Olga Kharevich, Konstantinos Kostikas, Elena Lapteva, Zsofia Lazar, Joerg D. Leuppi, Carol Liddle, Alejandra López-Giraldo, Vanessa M. McDonald, Rune Nielsen, Alberto Papi, Isabel Saraiva, Galina Sergeeva, Agni Sioutkou, Pradeesh Sivapalan, Elizabeth Stovold, Hao Wang, Fuqiang Wen, Janelle Yorke, Paula R. Williamson, Jørgen Vestbo, Jens-Ulrik Jensen