1 Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
2 Neurodegenerative Disease Unit, Department of Basic Medicine Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy.
3 Department of Epidemiology, Unit of Research Methodology and Data Sciences for Population Health, National Institute of Gastroenterology "Saverio de Bellis", Research Hospital, Castellana Grotte, Bari, Italy.
4 Department of Biosciences, Biotechnologies and Biopharmaceutics, Campus Universitario "Ernesto Quagliariello", University of Bari Aldo Moro, Bari, Italy.
5 Accident and Emergency Department (AED), F. Perinei Hospital, Altamura, Bari, Italy.
6 Department of Neuroscience, Catholic University of Sacred Heart, Rome, Italy.
7 Neurology Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy.
8 Department of Epidemiology, Unit of Research Methodology and Data Sciences for Population Health, National Institute of Gastroenterology 'Saverio de Bellis', Research Hospital, Castellana Grotte, Bari, Italy.