Abraha I, Orso M, Grilli P, Cozzolino F, Eusebi P, Casucci P, Marchesi M, Luchetta ML, Fruttini L, Ciappelloni R, Florio RD, Giovannini G, Montedori A. The Current State of Validation of Administrative Healthcare Databases in Italy: A Systematic Review. ijsmr [Internet]. 2014 Aug. 25 [cited 2024 Nov. 21];3(3):309-20. Available from: https://mail.lifescienceglobal.com/pms/index.php/ijsmr/article/view/2265