Internal medicine, diabetes, endocrine-metabolic diseases Unit and the Centre for Applied Clinical Research (Ce.R.CA.) Clinical Institute 'Beato Matteo Vigevano, Italy;
Department of Clinical and Experimental Medicine, University of Catanzaro, Catanzaro, Italy;
Cardiology Unit, Clinical Institute 'Citta di Pavia ', University of Pavia, Pavia, Italy;
Department of lnternal Medicine, University of Pavia, Pavia, Italy;
Department of Medical and Surgical Sciences, University of Brescia, Brescia, Italy;
IRCCS Policlinico San Donato and University of Pavia, Pavia, Italy;
IRCCS Policlinico San Donato and University of Milan, Milan, Italy;