1. Department of Public Health, Vascular Surgery Unit, University Federico II of Naples, Naples, Italy
2. Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
3. Department of Medical and Surgical Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
4. Interuniversity Center of Phlebolymphology (CIFL). International Research and Educational Program in Clinical and Experimental Biotechnology. Headquarters: University Magna Græcia of Catanzaro, Catanzaro, Italy