1. Radiology Department; Brotzu Hospital; Piazzale A. Ricchi 1 09134 Cagliari Italy
2. Radiology Department; Cattolica del Sacro Cuore University; Largo A. Gemelli 8 00168 Rome Italy
3. Pathology Department; Brotzu Hospital; Piazzale A. Ricchi 1 09134 Cagliari Italy