Susceptibility to exacerbation in chronic obstructive pulmonary disease

John R Hurst, Jørgen Vestbo, Antonio Anzueto, Nicholas Locantore, Hana Müllerova, Ruth Tal-Singer, Bruce Miller, David A Lomas, Alvar Agusti, William Macnee, Peter Calverley, Stephen Rennard, Emiel F M Wouters, Jadwiga A Wedzicha, NN NN