1. PICC Team/Vascular Access Service, Department of Nursing, European Institute of Oncology, IRCCS, Milano, Italy
2. Division of Epidemiology and Biostatistics, European Institute of Oncology, IRCCS, Milano, Italy
3. Department of Nursing, European Institute of Oncology, IRCCS, Milano, Italy
4. Division of G-I Surgery, and PICC Team/Vascular Access Service, European Institute of Oncology, IRCCS, Milano, Italy