1 Unit of Endocrinology, Department of Medicine and Sciences of Aging, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.
2 Centre for Advanced Studies and Technology (CAST), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.
3 Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan.
4 Division of Endocrinology and Metabolism, Department of Medicine and Thyroid Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.