[1] Ist Nazl Tumori, Fdn Michelangelo, I-20133 Milan, Italy
[2] San Giovanni Antica Sede, Turin, Italy
[3] Ist Sci San Raffaele, Milan, Italy
[4] Fdn Salvatore Maugeri, Pavia, Italy
[5] Osped S Chiara, Trento, Italy
[6] Casa Sullievo Sufferenza, San Giovanni Rotondo, Italy
[7] Osped S Maria Misericordia, Udine, Italy