Wilhelminenspital, Vienna, Montlearstrasse 37, Austria
St James's Hospital, Dublin, Ireland
H. Clínico de Salamanca, Salamanca, Spain
University of Chicago Medical Center, Chicago, Illinois, United States
Indiana University Medical center, Indianapolis, Indiana, United States
The Cleveland Clinic Foundation, Cleveland, Ohio, United States
Ochsner Clinic Foundation, Baton Rouge, Louisiana, United States
Palm Beach Cancer Institute, West Palm Beach, Florida, United States
Access Clinical Research, Rancho Mirage, California, United States
University of Texas, MD Anderson Cancer Center, Houston, Texas, United States
University Hospital Innsbruck, Innsbruck, Austria
Republican Scientific and Practical Centre of Radiation Medicine and Human Ecology, Gomel, Belarus
AZ St-Jan Brugge Oostende AV, Brugge, Belgium
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, Maryland, United States
Scottsdale Healthcare/Virginia Pipe Cancer Institute, Scottsdale, Arizona, United States
University of Alabama at Birmingham Comprehensive Cancer Ctr, Birmingham, Alabama, United States
Memorial Sloan-Kettering Cancer Center, New York, New York, United States
Univ. of Texas MD Anderson Cancer Center, Houston, Texas, United States
Premiere Oncology of America, Scottsdale, Arizona, United States
Academisch Medisch Centrum, Amsterdam, Netherlands
Medisch Spectrum Twente - Dept of Pulmonary Diseases, Enschede, Netherlands
Academisch Ziekenhuis Maastricht, Maastricht, Netherlands