Dr. Susan Tarlo, MD, Gage Occupational and Environmental Health Unit, Department of Medicine, Toronto Western Hospital, University of Toronto, CANADA. Professor Paul Cullinan, Professor in Respiratory Epidemiology at the National Heart and Lung Institute and Honorary Consultant Physician in Respiratory Medicine at Royal Brompton Hospital, London. Professor Benoit Nemery, MD Ph D, Professor of Toxicology and Occupational Medicine, Department of Occupational, Environmental and Insurance Medicine and Pneumology, Research Unit of Lung Toxicology, Catholic University of Leuven, BELGIUM Editorial Board member, Journal of Inhalation Toxicology.