1 Department of Pneumology and Respiratory Functional Exploration, University Hospital of Tours, Tours, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Centre d'Etude des Pathologies Respiratoires, U1100, F-37032 Tours, France.
2 Clinical Research Division, Fred Hutchinson Cancer Center and SWOG Statistics and Data Management Center, Seattle, Washington.
3 Department of Medicine, Cedars Sinai Medical Center, Los Angeles, California. Electronic address: [email protected].