1. Department of Nuclear Medicine and Thyroid Centre; Oncology Institute of Southern Switzerland; Bellinzona Switzerland
2. Section of Endocrinology and Diabetology; Ospedale Israelitico; Rome Italy
3. Section of Pathology; Ospedale Israelitico; Rome Italy
4. Institute of Pathology; University Hospital; Lausanne Switzerland
5. Section of Pathology; University Hospital Campus Bio Medico; Rome Italy
6. Department of Clinical Therapeutics, Endocrine Unit, School of Medicine; Alexandra General Hospital, Athens University; Athens