1. Center for Outcomes Research and Clinical Epidemiology – CORESEARCH, Pescara, Italy;
2. Sandro Pertini Hospital, Roma, Italy;
3. Treviglio Hospital, Treviglio (BG), Italy;
4. Desio and Vimercate Hospital, Desio (MI), Italy;
5. Mariano Comense Hospital, Mariano Comense (CO), Italy