1 Headache Center, Department of Medicine and Science of Aging, and Center on Aging Science and Translational Medicine, G D'Annunzio University of Chieti, 66100 Chieti, Italy. Electronic address: mag@unich.it.
2 Institute of Surgical Pathology, Department of Medical, Oral and Biotechnological Sciences, G D'Annunzio University of Chieti, 66100 Chieti, Italy.