[1] Ctr Francois Baclesse, Ctr Traitement Donnees Canceropole Nord Ouest, F-14076 Caen 05, France
[2] Univ Caen, GRECAN EA 1772, Caen, France
[3] Univ Caen, Inst Univ Technol Caen, Caen, France
[4] Otto von Guericke Univ, Magdeburg, Germany
[5] Ctr Hosp Univ LArchet, Nice, France
[6] Dr Daniel Den Hoed Canc Ctr, NL-3008 AE Rotterdam, Netherlands
[7] Med Spectrum Twente, Enschede, Netherlands
[8] Inst Bergonie, Bordeaux, France
[9] Leiden Univ, Med Ctr, Leiden, Netherlands
[10] Maria Sklodowska Curie Mem Inst Oncol, Ctr Oncol, Warsaw, Poland
[11] Univ Ziekenhuis Gastuisberg, Louvain, Belgium
[12] Erasmus MC Univ, Med Ctr, Rotterdam, Netherlands
[13] Inst Portugues Oncol Francisco Gentil, Oporto, Portugal
[14] Inst Cancerol Gustave Roussy, Villejuif, France
[15] Univ Med Ctr Utrecht, Utrecht, Netherlands
[16] Radboud Univ Nijmegen, Med Ctr, Nijmegen, Netherlands
[17] Radiotherapeut Inst Friesland, Leeuwarden, Netherlands
[18] Ctr Hosp Univ St Louis, Paris, France
[19] Sophia Hosp, Zwolle, Netherlands
[20] Netherlands Canc Inst, Amsterdam, Netherlands
[21] Amphia Hosp, Breda, Netherlands
[22] Ctr Riferimento Oncol, I-33081 Aviano, Italy
[23] Onze Lieve Vrouw Hosp, Amsterdam, Netherlands
[24] Inst Oncol, Ljubljana, Slovenia
[25] Ctr Hosp Univ Brabois, Nancy, France
[26] Univ Lyon 1, Hosp Civils Lyon, F-69622 Villeurbanne, France
[27] CHU Pitie Salpetriere, Paris, France
[28] Univ Amsterdam, Acad Med Ctr, NL-1105 AZ Amsterdam, Netherlands
[29] Clin Univ St Luc, B-1200 Brussels, Belgium
[30] Catharina Hosp, Eindhoven, Netherlands
[31] Ctr Hosp Univ Henri Mondor, Creteil, France
[32] Ctr Hosp Univ, Le Kremlin Bicetre, France
[33] CHU Caen, F-14000 Caen, France
[34] Ter Gooi Ziekenhuizen, Blaricum, Netherlands
[35] Hop Edouard Herriot, Hosp Civiles, Lyon, France
[36] Ctr Hosp Univ, Chambery, France
[37] Univ Hosp Antwerpen, Edegem, Belgium
[38] De Wever Ziekenhuis, Heerlen, Netherlands
[39] Leyenburg Ziekenhuis, Den Hag, Netherlands