Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy. Department of Surgical, Medical and Molecular Pathology and Critical Care, University of Pisa, Pisa, Italy. Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; Center for Basic and Clinical Immunology Research, University of Naples Federico II, 80131 Naples, Italy; World Allergy Organization Center of Excellence, University of Naples Federico II, 80131 Naples, Italy; Institute of Experimental Endocrinology and Oncology "Gaetano Salvatore", National Research Council, 80131 Naples, Italy. Department of Clinical and Experimental Medicine, Section of Endocrinology, University of Messina, Messina, Italy; Master Program on Childhood, Adolescent and Women's Endocrine Health, University of Messina, Messina, Italy; Interdepartmental Program on Molecular & Clinical Endocrinology, and Women's Endocrine Health, University Hospital, A.O.U. Policlinico Gaetano Martino, Messina, Italy. Department of Surgical, Medical and Molecular Pathology and Critical Care, University of Pisa, Pisa, Italy. Electronic address: alessandro.antonelli@med.unipi.it.