1. Department of Medical, Surgical and Health Sciences University of Trieste Trieste Italy
2. Private Practice Terranegra di Legnago (VR) Italy
3. Private Practice Sassuolo (MO) Italy
4. Private Practice Arco (TN) Italy
5. Private Practice Torino Italy
6. Department of Health Sciences University “Magna Græcia” Catanzaro Italy
7. Department of Clinical and Experimental Medicine University of Foggia Foggia Italy
8. University of Bern Bern Switzerland