1Division of Psychosocial Research and Epidemiology, The Netherlands Cancer InstituteAmsterdam
2The Leicestershire HospiceLeicester, England
3Renstromska HospitalGöteborg, Sweden
4Biometric Center for Therapeutic Studies, Munich Federal Republic of Germany (FRG)
5Imperial Cancer Research Fund (ICRF) Medical Oncology UnitEdinburgh, Scotland
6EORTC Central Office and Data CenterBrussels, Belgium
7Istituto Nazionale TumoriMilan, Italy
8University of Cologne, FRG
9Long Island Jewish Medical CenteNew Hyde Park, N.Y. (for the Cancer and Leukemia Group B)
10Academic Medical Center, University of AmsterdamThe Netherlands
11The Norwegian Radium HospitalOslo, Norway
12Rigshospitalet, CopenhagenDenmark
13British Columbia Cancer AgencyVancouver, Canada
14Institut Jules BordetBrussels, Belgium
15Royal Adelaide HospitalAdelaide, South Australia
16Centre Hospitalier Régional de BesanconFrance
17the Netherlands Cancer Institute
18Sahlgrenska HospitalGöteborg, Sweden
19Saitama Cancer CenterJapan