[1] Lugano Reg Hosp, Clin Endocrinol & Diabetol, Lugano, Switzerland
[2] Univ Svizzera Italiana USI, Fac Biomed Sci, Lugano, Switzerland
[3] EO Osped Galliera, Dept Nucl Med, Genoa, Italy
[4] Sapienza Univ, S Andrea Hosp, Dept Med & Surg Sci, Rome, Italy
[5] Mauriziano Hosp, Dept Endocrinol Diabet & Metab, Ctr Thyroid Dis, Turin, Italy
[6] Campus Biomed Univ, Unit Metab Dis, Rome, Italy
[7] EO Osped Galliera, Dept Surg, Genoa, Italy
[8] Mauriziano Hosp, Div Otolaryngol, Turin, Italy
[9] Mauriziano Hosp, Unit Pathol, Turin, Italy