1. Division of Pulmonary and Critical Care Medicine,University of Washington School of Medicine, Seattle, Washington
2. University of Amsterdam, the Netherlands
3. Bayer Healthcare, Wuppertal, Germany4Academic Medical Centre, Amsterdam, the Netherlands
4. Bayer Healthcare, Wuppertal, Germany
5. Haematology Division, Prince of Wales Hospital, Sydney, Australia
6. Cancer Care Centers of South Texas/US Oncology, San Antonio, Texas
7. Pulmonary Associates of Fredericksburg, Fredericksburg, Virginia
8. Maastricht University Medical Centre, Maastricht, the Netherlands