1. Continuing Education Center Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Pordenone Italy
2. Department of Economics and Statistics University of Udine Udine Italy
3. Department of Medical Sciences University of Udine Udine Italy
4. Scientific & Patients’ Library Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Pordenone Italy