1. Amgen Inc., One Amgen Center Dr., MS: 28-3-A, Thousand Oaks, CA 91320-1799, USA
2. United BioSource Corporation, Montreal, Quebec, Canada
3. Amgen Inc., Thousand Oaks, CA, USA
4. Amgen Inc., Uxbridge, UK
5. Polyclinique Francheville, Périgueux, France
6. Department of Pulmonology, Centre Hospitalier Chauny, Chauny, France