HighWire Lens: “Effect of different asthma treatments on risk of cold-related exacerbations.” H.K. Reddel, C. Jenkins, S. Quirce, M.R. Sears, E.D. Bateman, P.M. O'Byrne, M. Humbert, R. Buhl, T. Harrison, G.G. Brusselle, A. Thorén, U. Sjöbring, S. Peterson, O. Östlund and G.S. Eriksson. Eur Respir J 2011; 38: 584–593.