title: Reply.
authors: Department of Chest Medicine, Hôpital du Sacré-Coeur de Montréal, University of Montreal, Montreal, Quebec, Canada. Electronic address: catherine.lemiere@umontreal.ca.
authors: Catherine
authors: C
authors: Lemiere
authors: Department of Chest Medicine, Hôpital du Sacré-Coeur de Montréal, University of Montreal, Montreal, Quebec, Canada; Institute for Work and Health, Epalinges-Lausanne, Switzerland; Division of Pulmonary Diseases, Geneva University Hospitals, Geneva, Switzerland.
authors: Jacques A
authors: JA
authors: Pralong
authors: Department of Chest Medicine, Hôpital du Sacré-Coeur de Montréal, University of Montreal, Montreal, Quebec, Canada.
authors: André
authors: A
authors: Cartier