Zaghini, Francesco, Valentina Biagioli, Cesarina Prandi, Roberta Fida, and Alessandro Sili. 2015. “Nurses and Organizational Citizenship Behavior: Contribution to the Italian Validation of the Podsakoff Et Al. Scale”. La Medicina Del Lavoro 106 (6), 460-71. http://www.mattioli1885journals.com/index.php/lamedicinadellavoro/article/view/4509.