1. Ctr Oscar Lambret, Lille, France; Hosp Provincial Reina Sofia, Córdoba, Spain; Hosp Clinic i Provincial de Barcelona, Barcelona, Spain; Ctr Jean Perrin, Clermont Ferrand, France; Hosp Virgen Blanca de León, León, Spain; Inst Catala d’Oncologia, Girona, Spain; Merck KGaA, Darmstadt, Germany; Klin Essen Mite, Essen, Germany