1 Department of Anesthesia and Intensive Care, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alzta Specializzazione) Palermo, Palermo, Italy.
2 Research Office, IRCCS-ISMETT, (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione) Palermo, Palermo, Italy.
3 Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Auenbruggerplatz 15, 8036, Graz, Austria.
4 Institute of Diagnostic and Interventional Radiology, Klinikum Klagenfurt am Woerthersee, Klagenfurt, Austria.
5 Division of General Neurology, Department of Neurology, Medical University of Graz, Graz, Austria.
6 Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Auenbruggerplatz 15, 8036, Graz, Austria. karin.amrein@medunigraz.at.