Abraha, Iosief, Massimiliano Orso, Piero Grilli, Francesco Cozzolino, Paolo Eusebi, Paola Casucci, Mauro Marchesi, Maria Laura Luchetta, Luisa Fruttini, Raoul Ciappelloni, Rita De Florio, Gianni Giovannini, and Alessandro Montedori. “The Current State of Validation of Administrative Healthcare Databases in Italy: A Systematic Review”. International Journal of Statistics in Medical Research 3, no. 3 (August 25, 2014): 309–320. Accessed November 21, 2024. https://lifescienceglobal.com/pms/index.php/ijsmr/article/view/2265.