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 & Surgery, University of Insubria, ASST dei Sette Laghi, Varese, Italy.