Malignant peripheral nerve sheath tumors: prognostic factors and survival in a series of patients treated at a single institution - Anghileri, M; Miceli, R; Fiore, M; Mariani, L; Ferrari, A; Mussi, C; Lozza, L; Collini, P; Olmi, P; Casali, P G; Pilotti, S; Gronchi, A (Cancer, 2006)