1 Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
2 Department of Clinical and Experimental Medicine, Section of Endocrinology, University of Messina, Messina, Italy.
3 Master Program on Childhood, Adolescent and Women's Endocrine Health, University of Messina, Messina, Italy.
4 Interdepartmental Program on Molecular & Clinical Endocrinology, and Women's Endocrine Health, University Hospital, A.O.U. Policlinico Gaetano Martino, Messina, Italy.