[1] Univ Catania, Dept Med Surg Sci & Adv Technol G Ingrassia, Catania, Italy
[2] Univ Roma Tor Vergata, Dept Biomed & Prevent, Rome, Italy
[3] Univ La Rioja, Un Predept Enfermeria, Logrono, Spain
[4] Teaching Hosp Friuli Cent, Dept Specialist Med, Udine, Italy
[5] Univ Roma Tor Vergata, Rome, Italy