1. Endocrinology, Diabetes and Metabolism Department and Center for Thyroid Diseases, Ordine Mauriziano Hospital, Turin 10128, Italy
2. Endocrinology and Diabetes Center, Italian Hospital, Ente Ospedaliero Cantonale (EOC), Viganello 6962, Switzerland
3. Otorhinolaryngology Department and Thyroid and Parathyroid Surgery Unit, Ordine Mauriziano Hospital, Turin 10128, Italy
4. Pathology Unit, Ordine Mauriziano Hospital, Turin 10128, Italy