SASCIA
GBG Forschungs GmbH
GBG Forschungs GmbH
University of California, San Francisco
M.D. Anderson Cancer Center
Dana-Farber Cancer Institute
Yale University
MedSIR
British Columbia Cancer Agency
H. Lee Moffitt Cancer Center and Research Institute
MedSIR
West German Study Group
Massachusetts General Hospital
West German Study Group
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
UNICANCER
Dana-Farber Cancer Institute
Peking University Cancer Hospital & Institute
UNICANCER
Peking University Cancer Hospital & Institute
Vanderbilt-Ingram Cancer Center