1Chief of Pulmonary and Critical Care, St Elizabeth's Medical Centre, 736 Cambridge Street, Brighton, MA 021354-2997, USA
2Associate Director of Primary Care Nursing, Bedfordshire and Hertfordshire, UK
3Professor of Medicine, University of Toronto, Ontario, Canada
4Lung and Allergy Specialist, Maingau Hospital, Frankfurt, Germany
5President, European Federation of Allergy and Airways Disease Patients Associations, Oslo, Norway
6Professor of Medicine, Hospital Clinic, Universitat de Barcelona, Spain
7Professor of Respiratory Medicine, Wythenshawe Hospital, Manchester, UK
*Tel.: +1 617 789 2554; fax: +1 617 562 7756. E-mail address: bcelli@copdnet.org (B. Celli)