1 Laboratory of Medical Informatics, Department of Epidemiology, IRCCS Istituto di Ricerche Farmacologiche Mario Negri Milano, Italy.
2 Psychology Research Laboratory, Istituto Auxologico Italiano IRCCS, Ospedale San Giuseppe Verbania, Italy ; Department of Psychology, Catholic University of Milan Milano, Italy.
3 Department of Informatics, Systems and Communication, Università degli Studi di Milano-Bicocca Milano, Italy.