[1] German Canc Res Ctr, D-6900 Heidelberg, Germany
[2] IRCC, Turin, Italy
[3] Ctr Oscar Lambret, F-59020 Lille, France
[4] Univ Hosp S Anna, Ferrara, Italy
[5] Catharina Hosp, Eindhoven, Netherlands
[6] Aberdeen Biomed Imaging Ctr, Aberdeen, Scotland
[7] Univ Roma La Sapienza, Rome, Italy
[8] Univ Milan, Sch Med, Milan, Italy