title: From the authors.
authors: National Heart and Lung Institute, Imperial College, London, UK f.chung@imperial.ac.uk.
authors: Kian Fan
authors: KF
authors: Chung
authors: Dept of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
authors: Sally E
authors: SE
authors: Wenzel
authors: Dept of Clinical Epidemiology and Biostatistics and Medicine, McMaster University, Hamilton, ON, Canada.
authors: Jan L
authors: JL
authors: Brozek
mesh_terms: D001249:Asthma / Q000175:diagnosis* / Q000628:therapy*; D006801:Humans; D015272:Pulmonary Medicine / Q000592:standards*