Auckland Clinical Studies Ltd., Auckland, New Zealand
Christchurch Clinical Studies Trust, Christchurch, New Zealand
Gilead Sciences, Cambridge, United Kingdom
University of California, Davis, Sacramento, California, United States
Capital Medical Associates PC, Washington, District of Columbia, United States
Univ.-Kklinik fuer Innere Medizin III, Salzberg, Austria
UT Southwestern Medical Center at Dallas, Dallas, Texas, United States
Toronto General Hospital, Toronto, Ontario, Canada
Medical Associates Research Group, San Diego, California, United States
Columbia University Medical Center, New York, New York, United States
Chum Hotel Dieu, Montreal, Quebec, Canada
Turku University Hospital, Turku, Finland
University of California, San Diego, Moores Cancer Center, La Jolla, California, United States
Columbia University - Herbert Irving Pavilion, New York, New York, United States
Memorial Sloan Kettering Cancer Center, New York, New York, United States
University of Chicago, Chicago, Illinois, United States
Dr. Bruce Bacon, St. Louis, Missouri, United States
Cedars Sinai Medical Center, Los Angeles, California, United States
National Research Institute (NRI), Los Angeles, California, United States
Vince and Associates Clinical Research, Overland Park, Kansas, United States
Cetero Research, San Antonio, Texas, United States
University Medicine Goettingen (UMG), Goettingen, Germany