Bonaccorsi, G., M. Grazzini, L. Pieri, F. Santomauro, M. Ciancio, and C. Lorini. “Assessment of Health Literacy and Validation of Single-Item Literacy Screener (SILS) in a Sample of Italian People”. Annali dell’Istituto Superiore Di Sanità, vol. 53, no. 3, Oct. 2017, pp. 205-12, https://annali.iss.it/index.php/anna/article/view/527.