F Trimarchi1, E Martino2, L Bartalena3. 1. Accademia Peloritana dei Pericolanti at The University of Messina, Messina, Italy. francesco.trimarchi@unime.it. 2. University of Pisa, Pisa, Italy. 3. Endocrine Unit, Department of Medicine and Surgery, University of Insubria, Varese, Italy.