Department of Computer Science and Engineering, University of Bologna, Mura Anteo Zamboni 7, Bologna, Italy.|Department of Physics and Astronomy, University of Bologna, Viale Berti Pichat 6/2, Bologna, Italy.|Smart Cities Living Lab, Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna, Italy.|Department of Laboratory Medicine, Karolinska Institutet, Alfred Nobels Allé 8, Stockholm, Sweden.